Great video and information. My TC failed at 82K miles and shredded my transmission. Fortunately for me my 2014 was still under its 100k mile powertrain warranty so I had it repaired for free though it took two and a half weeks. My transmission was so trashed I actually got a new one and not a reman. I also got the upgraded TC installed as well at no cost to me.
im at 113K miles on my 2016 Sierra and i think my TC and tans are toast, I was able to get a trans off a 2018 silverado LT with 5K miles on it (same 6L80 trans). The truck was totaled but trans still good. planning on doing the swap in a week. my questions are: do you think any programming/relearn is required for the whole trans swap? secondly, while its down should i upgrade the torque converter or just use the OEM?
@@utrocker7 I would definitely upgrade the TC. That's what caused my trans to fail. As for the programming, my guess is it will need to be reprogrammed or at least a relearn for sure.
Confirmed! My TCC failed with 108k on the clock in my '17. Went with a reman trans. It is my belief that the AFM operation makes the TCC work much harder and thus reduces its already short life.
I believe that as well. Also contributes to the known cylinder misfire due to stuck lifter issue. I bought a $60 device to plug in the OBD port that disables the AFM and man does it ever respond better.
I've been a professional mechanic for over 40 years. I would never replace a torque converter without first replacing the torque converter seal. The seal has got over 100k mikes on it. It's going be running on a new surface. It is 10 times more work to replace it after it's all put back together.
Do you have the OEM part number for that on the 6l80? Think I screwed myself, potentially. Didn’t replace the seal and I’m having to add a ton of pressure to get the converter to stay locked. It either locks smoothly but slips with applied throttle, or locks super harshly and doesn’t slip as often. Thoughts on if it’s that seal, as well as the part number, if you know it?
The ZL1 converter has a dual disc lockup clutch, and should have a slightly higher stall speed. Pop a new seal in the front of your trans since you are there! Pack the seal lip with grease, apply some lube to the torque converter shaft OD, and let er' rip. Thanks for the vid.
Great video. I had that same issue of transmission shudder in my 2017 Sierra at 30K miles. The dealer replaced the fluid. It happened again at 57K miles and this time they replaced the torque converter. I was glad I purchased the 100K power train warranty when I bought the truck, I have 10 months left on it!
The common problem with these transmission is the failure of the main pressure regulator valve in the pump, which drops the line pressure on these unit. In the early model the output shaft had a design where it also cleaned the fluids by catching debris with centrifugal force as you drove the vehicle around. Early unit use to go up to 200k miles with very little service. Then gm change the design of the out put shaft and more metal shaving (practical's) from the planetary sets started to float around in the fluid. So it is paramount to change the fluid on these units every 25 to 30k miles. Changing fluids on these units will help prolong the life of these tranny. Please do a complete transmission fluid service as you are installing a brand new Converter. Hope this helps and most likely you have done the oil change on it.
@@davidouradnik7925 No it does not set a code for a worn pressure regulator valve. Most of the time it will pick up a clutch pack is slipping code or solonied performance.
I have a shudder and no codes. I'd like to just change the torque converter but everyone says it won't work or it won't last. Never overheated it or burnt the fluid,and the fluid has been changed several times and looks good.
Good to know that it failed that early. I am planning to swap to a billet converter around 200K miles which would be around 92K miles total. Sitting at 136K roughly right now but maybe I will change it earlier.
I got 195,099 miles out of mine. But it went full self destruct within 15 miles…. Started to feel a little bit of a slip.. then started up a pretty good grade and it literally started screaming, and I lost all but 1 st gear. Luckily I was only a few miles from home and limped into the driveway… replacing it with an updated L6-80 C-5… apparently this is a better option for replacement.
Love your videos man. I plan to do the same DOD/AFM delete to my truck by following along your videos. Definitely going to look into a torque converter swap now too
Thank you for this video - have a 6L90E in mine, but mileage is quite low so far. Am surprised you didn't change out the front main seal of the transmission - it's right there, and super cheap and convenient at that stage =)
Generally you don't mess with rear mains unless they're leaking. Better off keeping it sealed because it's hard to get a good seal replacing it. We do that with Allison builds. If the rear main is good, it stays
@The Sundae Drive, thank you very much for this & your other instructional videos, very helpful!! I have a 6L80 transmission in my 2010 Chevy Avalanche 5.3L, but my TC hasn't failed yet (~130K). Questions: 1) Do you know how much of a different a billet makes - and is your answer based on what you're driving/towing, or overall longevity? 2) RockAuto suggests for me: TC Remfg. B85JMBX (Standard), HDB85JMBX (Heavy-Duty Billet), or B85JMBXF (Flanged Hub). I was considering one of those, but after referring to your 6L80/6L90 article, sounds like I probably shouldn't consider those for replacements? 3) I saw another guy suggests getting a L6-80 (made for Corvette C5) - did you ever look into that? (I'm basically wondering what sold you on the GM 6L90 (24242552)? Thanks!!
my truck is at 180k still no failures knock on wood, 2014 5.3 420hp with tune and running e 85- just did a transmission fluid change and didn't see any metal on the magnet really. looked pretty clean compared to what iv seen. but looking into maybe changing the converter while everything is still working as it should
You are lucky! I would pre-emptively change it before it happens again. Normally they last 80-120K from what I've seen. If you tow a low you'll probably be on the lower end of that range.
Thanks for the information! Got an 07 Yukon Denali at 181k. Transmission is acting up a bit and suspecting the torque converter is on the way out. Going to install a billet TC from Circle D and replace a rear main seal. Wish me luck!
@@brandon367011 Yeah, both worked great. The leak was primarily the rear main seal, but also a leak in the plenium cover. The new torque conver also workes great! The old converter was not holding well and rumors say that a high mileage TC could ruin a transmission by sending material into the transmission. I'm pretty happy with the results.
@@20tea good dead ! I have a 17 Silverado on 35 with only 51k miles and isn’t my daily driver but I should change the TC anyway from a 6l80 to a 6l90 ?
147👍's up thanks again for taking us all along with you how much torque and horsepower is lost going through the 4L80E transfer case in 410 truck rear end before the power gets to the ground that is a growing question I'd like to know
In the last 2 weeks, my 2014 GMC Sierra sle (131k miles) with the 5.3L started to shift in and out a bit randomly, also occasionally makes a rumble strip feeling at highway speeds when going up hills with just a bit of throttle applied. I just had the dealership do a transmission flush and it is better but not fixed. Dealership said it could just be the torque converter but recommended a full transmission replacement anyways at $5,200 and change. I’m considering my options. I’m handy and have tools, but more carpenter than mechanic. Do I try to save the $1,000 and drop the transmission and replace torque converter to see if it works before spending $5,200 on a replacement?
If the flush made it better in my opinion there is a good chance the transmission is ok and the torque converter may be starting to disintegrate and clog the lines. To me it's worth a shot because the torque converter will need to be replaced regardless. Is the transmission slipping at all? The sooner you replace it, the better chance you have of saving it if that is the issue. That is just my opinion tho as it is hard to know for sure without opening it up
I haven’t noticed it slipping at all. How difficult is it to replace? Easier to pull the tranny out to get at it or the motor? I think the dealer was thinking that if replacing the torque converter, may as well switch the tranny too since it would be out.
Easier to pull the transmission for sure. If you are doing the labor I'd only do the transfer case. A good shop can probably do it in 6 hours or less I would imagine. I've never pulled the trans myself so not positive.
The thing like rumble strips is the torque converter clutch starting to fail. It is random slippage of the clutch that shakes the torque converter. It is commonly referred to as torque converter shudder.
IDK how much the factory gm converter is, but you can find aftermarket billet cover stock stall single disc lock-up converters now for around $500. I went with a unit sold by trans star. Iirc these units are made by a company out of ohio and sold through trans star.
@johnnybobgoldstein2823 all 10 I've installed are still on the road with 0 issues. They also had the afm and pwm tc lockup turned off via tune. I have over 175k on my personal with this exact converter.
Not sure how the ZL1/CTS-V 6L90 converter holds up (haven't seen any get replaced at work yet) but the 6L90 HD truck converters seem to the same crap as the 6L80 truck ones. We've put converters or worse in plenty 2014-2018 model year trucks. Sad. 07-13 trucks I don't think we've done all of one or two of them at most.
@@andresneira9745 Are you talking the Mobil 1 HP fluid? That's only for the 8 speed transmissions. The 6 speed just run any good Dexron 6 ATF so GM, Amsoil, Mobil, etc. Dexron 6 for the 6 speeds, Mobil LV ATF HP Blue Label for 8 speed.
@@andresneira9745 Changing it will put fresh fluid in which will replace and replenish the additives used to regulate clutch slippage so changing it is still good to do. Every 40-50K, especially if you tow.
I went to chevrolet and they wanet put the factory but i heard that in other chevrolet they put mobil 1. So has 2 diferentes mobil 1?? My truck is a silverado 2017. 5.3 8 speed
Great RUclips site you guys have!! Have learned a bunch about my 2015 Silverado. I have had a buddy that owns a transmission shop recommend replacing the tranny. I only have 92,000 miles. May I ask your opinion please? On my 2015 Silverado 2500 I have a transmission whining sound as I increase speed and slow down. My question: do you believe this is the torque converter starting to fail? Thanks so much for the channel and all your knowledge. hal
The 6l80e torque converter is constantly slipping that's why they fail. Get the 80 tuned to only lock in 5th and 6th. Raise the pressure and they are good
I bought my 11 Sierra LC9 from an elderly local Guy who's a life long GM buyer. He babied the truck as youd expect with all services at the dealership I bought her from. Making the records as easy as it gets for me. I'm a builder so I'm hard on the truck but that's why we buy trucks right? We have the heaviest available package for the 03' year in the 2500hd 6.0 for the severe pulls/loads and she's bulletproof. However!! 3 years ago I pulled out 6'-10' dump trailer with my half ton! Just to get 3 yards of 3/4" gravel for my own house needed for a walk way. Told the guy out in the local yard what I wanted he said no problem so I figure great I'm heading in to pay as he knew his shit and how to properly load......I come out of the office and he says you're all set man the 3yrads of gravels loaded I said thanks and see you around.... Fckn guy didn't know that the new Bobcat wasn't equipped with the same half yard bucket oh no it had a yard bucket so his SIX FULL BUCKETS almost filled our dump trailer so I'm looking at it like WTF!?? I double checked that's only 3 yards man you're sure and he replied ya man I've been doing this almost as long as youve been alive, what's wrong....so I go back to me truck fire her up and put it in 4wd full on as both axles on the dump were showing a load to put it mildly. The 11' HALF TON! in tow haul got that load moving very easy, but I have no electric brake control in the truck as we have a real full on work horse for that lol and stopping that load was very hard. Knowing something is way off I pulled it to the shop and hooked the work truck to her. It was 6 yards at 3000 pounds plus the dump about 2000 pounds the truck pulled up some long steady grades to get to the shop. So that is legitimately 20,000 pounds my HALF TON was forced to pull and to stop! Honestly she impressed me so much easily pulling the load I was double guessing that old timer way overloaded it, but trying to stop that load took every skill I had so I knew it was over. At the shop I rolled the mesh cover up and inspected the load myself closely this time. I was extremely pissed off as one clear look even a city boy could tell that's way more than 3 fckn yards man. Had no choice but to pull her to the shop once I left. Between being very disappointed with myself for trusting the old timer down there so much as it is ultimately my responsibility for what I pull with my truck, yet at the same time I, along with all the guys there were absolutely blown away the half ton Sierra pulled that 20,000 plus pound load so easily. They all witnessed me completely stop on the slight grade so a couple trucks could move outta my way, then have to get all that weight rolling again and it did make all 8 cylinders work but she had power to spare! The 2500hd equipped with the heaviest possible setup/package even offered by GM actually had abit harder time getting the load moving even with 4.11 ring&pinion....but the random dumps brakes made all the difference so I decided to pull her all the way home a half hr drive purely uphill by taking all the back roads going slow an easy allowing anyone behind me to pass. That load was thousands of pounds above even the HD work truck built for it capacity, but the way that 11' LC9 with the 6L80 and 3.52 (I can't remember exact ratio but close enough) ring& pinion pulled that load making it so effortlessly even the Ford guys with diesel were the first to say that's beyond impressive. Absolutely STUPID! A combination of mistakes/stupidity lead to that. I am telling the truth entirely and ya it's embarrassing as it gets to admit that even tho I know better I STILL pulled off that drop dead stupid move, yet the truck took it. That gravel was moist as hell but doesn't hold water like sand, still the 3000 pounds per yard is a conservative figure, and there was a full 6 yards in that 1ton dump (rated to haul 4 tons itself) That's pushing as hard as a guy can to break his truck or have problems of some sort, yet our trucks stepped up, took that ass whippin and just carried on. I definitely got LUCKY and would never allow it to happen again, but the fact remains that the 2011 Sierra 1500 LC9-6L80 3.52 R&P pulled over 20,000LBs off the fckn hitch (rated 10,000LBs max) mostly uphill. Well done GM👍🇺🇸👍🇺🇸🤯
@@johnserrano9689 3.42 rear end likely. i have the same powertrain you described, and have only towed about 4000 lbs. it did it without any issue, but thats hardly much considering the tongue weight was probably 400-500 lbs. otherwise it gets daily'd, has done about 20k miles a year all its life. gravel roads, minnesota salty winters. rusty but trusty thus far.
@@TheSundaeDrive it's crazy what we do at times, but the fact we know better in the first place is the funny part in the end. If we damage our trucks being that stupid then we man up, complain as we're lowering the tranny down and out but after a week or 2 we laugh. The times we get LUCKY we also know enough that it's nothing to brag about lol I love the 78' GM trucks as an example, but a 78 half ton had no chance of pulling that 20,000lb trailer man let's face it a dam 3/4 ton of the era would be extremely sketchy. But our new trucks we curse out when say a tank pressure sensor goes bad dropping that 5volt circuit putting the truck in limp mode, the truck screaming at us turn off engine immediately as there's no oil pressure! But we know there is. So we gotta hook up the volt meter to the battery ground, other terminal to the grey wire on the MAP sensor watching the meter as we unplug 1 sensor at a time until the 5 volts comes back......but at the end of the day they really have come incredibly far. Fckn 1500 now is equal if not stronger than the old 3/4's an there on up I guess it's the beauty of such a competitive market 👍🇺🇸
My 2016 6l80 went bad at 110.000 the welds cause the converter to warp so i put a billet converter in it plus a rebuild its works like a champ now i have a fuel leak at top of the gas tank it needs a fuel pump and line
Always replace the o-ring on the splined shaft, you should also have the transmission tuned to not allow TCC clutch to slip so much. I use Hptuners and bluecat software. And dont ever buy a reman converter unless you want to do the job twice.
I've got a 2014 silverado 1500 v8 with 120k miles. When cruising at a steady speed, it downshifts, then upshifts, downshifts, upshifts, around 1700-2100 RPMs. I put it in manual mode and there is no issues whatsoever. Think it can be saved with a full BG fluid change and trans additive?
As I sit at the dealer watching this video. 130k. Just started feeling some irregularities. Dealer is doing some diagnostics for me. The tech mentioned tc failures. Will know more shortly. Ive watched a few videos and they all seam to be well done. Feel like I’ll be watching more soon. 🤦🏻♂️
@@TheSundaeDrive worst news. Tc failure, transmission failing. Got a quote. I think I’m going to call and make arrangements tomorrow. Just a bit out of my capabilities. Enjoy watching your videos though.
How is that 6l90 torque converter holding up. I have a 2013 Silverado with 160,000 mi. When I shifted into gear and hold the brake I can feel the torque converter. I meant off the break and for 2 seconds it's still there but after that it's gone. I thought it was the brakes but I turned and put new brake pads. It's a very light Rumble in the brake pedal but I'm pretty sure it's the torque converter. The reason why is because I had a LS that the transmission was jacked up wrong and it needed a new torque converter. And it feels like the same Rumble you never forget. What's your thoughts
No issues with my 6l90 transmissions so far. I have about 22K miles on it. I do plant to change it out when I hit 200K miles (90K on the converter) to a billet just to be safe.
My 2015 Silverado had this issue at 55k miles. It was still under warranty but the whole transmission had to be rebuilt. It got debris and wouldn't move once that debris clogged it up. If I let the truck sit for awhile then start it, it would move for a few minutes but then it would stop. All fixed under warranty though.
that stinks man - you were fortunate it occurred while under warranty. Can't believe it failed with such low mileage - most of the failures we have heard about were at 80K and above.
@@TheSundaeDrive i believe it was the torque converter at least. It's been a few years. I'd have to find the report from the dealer but I know it said they found debris that was clogging it up. The truck is at 85k now and I haven't had any issues!
My 2015 is doing it, just turned 50k. What makes no sense to me is that I purposely had the truck tuned by Diablew to prevent (delay) any future transmission issues. Didn’t really start doing it until after I tuned it and driving it on the interstate more instead of short back road trips. I’m thinking of doing a flush/filter since it’s probably never had one done. But I have a feeling I’m going to be doing a converter here soon. 🤨 tempted to go ahead and fork over the money to do a proper DOD delete with a small cam and a 6l90 converter since I like the stock stall for any future towing needs/keeping torque down low in the power band for my larger all terrain tires. Also thinking of putting an aux cooler and a deeper pan on it to help save the trans.
Be careful when you tighten the fill and drain plugs, they are tapered plugs and if you over tighten them you can crack the transfer case at the holes.... Lesson learned the hard way, don't make my mistake!!
I am curious that since the 6l90 converter is heavier, more mass, does it affect revving quickness or milagage?? It would be nice to hear from people who have done this mod and not just speculation, Thanks!
Old comment, but my dad's 2012 just got a new 6L90 after his transmission died at 187k. It mostly drives the same in terms of "quickness", but the transmission feels a lot heavier when it shifts which honestly is better than the sloppy feeling of the 6L80s. My dad likes it more than when it was stock.
I’ve got a two-part question is there anything you can do to prolong your torque converter/transmissions lifecycle? Also, is there any upgraded tour converters that you can install instead of the AC Delco one? I have a 2018 Chevy Silverado Z 71 4 x 4
I have a bullet converter I’m installing into my 6L80. The bell housing is rubbing on initial install. Once it’s mounted to the engine will it then slide far enough away that the bell housing won’t rub?
@@TheSundaeDrive over twice the price for anything billet that I’ve seen. Any specific reason for going billet over the 6l90 like towing for example? Unless you’re aware of a billet close to the $400 mark
when you got done do you have a converter lock-up issue? i did the swap and now at 40 mph rpms jump from 1000 1200 and back to 1000 every sec. put my truck converter back in and it was ok. so i had the dealer parts warranty it and the 2nd on does the same.
Why wouldn't you change the 2 seals? Also, if one of the pump nubs is at 10 o'clock then the other is at 4 o'clock seeing as they are 180 degrees from each other
What is the stock stall of the 6l80 vs 6l90 - you mention this is practically a bolt-on replacement - no tuned needed- is this 100% accurate and is the only difference between the 2 tc is the beefer internals?
My first transmission failed in my 16’ Denali at 32,000 miles and now at 58,000 finally did a service on the tranny and the torque converter is crap in the new replacement:
I have a 2015 Chevrolet Silverado V6 4.3 and I been told to replace the torque converter but I was told to get a heavy duty torque converter what do you recommend?
Im wandering after install how long it took before the front seal to start leaking. And that o-ring in the unput shaft for lock up. They are usually junk.
Does the transmission retain the Lock Up after swapping the Torque converter? The clutch-like feeling that engages after 40mph to be able to drive at low RPMs without the Converter Slipping
Well, is the 6L90 working? I'm in need of replacing mine, and I need the info on the converter you bought, please! Can you tell me which one you bought? Thanks!
2015 GMC seirra converter failed at 101000 went quick had to rebuild all transmission. It was serviced at 90,000 Change that convertor before its to late.
Is it abnormal for a break In Period to occur after a transmission rebuild and an upgraded torque converter? I am having shudder and rough shifts that has gotten better, but still occurs 200 miles after the new tc.
I have a 2018 gmc sierra 1500 with a 8L90 and wanted to do a change out with a new torque converter. Who has the NEW torque converter and what is the part number if anyone knows ? I do not want to just put in the same converter that has the same failer problem. Thanks.
Aftermarket for sure. Just need to find one that has a good stall rating for your application. I haven't looked into aftermarket options too much yet tho but I will when I start getting near 200K miles in a few years
Question for the group for those of you that went the rebuild route with the upgraded TC. What was the cost because im getting quoted a little over 8k for a remanufactured.
That seems a little steep but probably how much it goes for. The Torque converter itself runs around $1000-$1500 or so from circle D if you go with the billet option.
Can I put a 6l90 on a 2012 silverado 4x4 is it better and is it a direct fit? My 6l80 is burnt ima buy a new tranny but if a 6l90 fits I will get it please reply
@TheSundaeDrive thank you for getting back to me I did some research and from of what I have seen it looks like they will bolt on but their was no mention in changing torque converters etc.
Hey guys, I’m new here. I have a 2005 Chevy 2500HD and am swapping transmissions on it now. I have a 4L80E transmission and didn’t know if I could put this on the 4L80 or what I could do to make it better?
My 2011 Silverado had the torque converter go out and trash the trans at 105k. My 2017 Tahoe had the same issue at 75k. I drove the Silverado way harder than the Tahoe so... I'd say yes.
You should stay with the stock stall then most likely. Talk to the shop you are buying the torque converter from and they will be able to provide more insight. Circle d makes good torque converters from what I have heard.
Appreciate all your video's and the care and details you take. Do you have any knowledge on the 8spd? There's many that have issues vibration/shudder and TQ replacement. My 17 HC with 6.2L has the 8spd, but I have yet to experience anything. Also I use Amsoil since bought new in 2017, from front to back.
Thanks for that feedback! Unfortunately I do not have experience with the 8 speed. I do know there are a lot of shuddering issues and various Service Bulletins out for them. I've heard that changing you something like Amsoil usually helps. If you dealer is able to detect the shudder they have a flush procedure they are supposed to do for free from what I understand. I think you probably have avoided the issues by swapping to Amsoil
Gm tech of 15 years, we just flush the 8 speeds with mobile 1 hplv now, works awesome, on the 6 speeds, it depends on the amount of metal in pan, small typical metal we flush with dex 6, large Abnormal We replace converter, and will I lnspect pump and pump housing, also sometimes the tecm gets metal that busts through the screen and into valve body,. If ur 8 speed shutters “ it can be pretty voilent, go up hill at steady speed of 35mph with trans well warmed up, if you have the shutter, you’ll feel it.
I have a 17 Sierra with the 8 speed and the 6.2. Had the violent shudder at 30k and the dealer did a fluid swap and flush. 3 years and 27K more miles it came back but was worse with shudder, noise and slippage. The dealer replaced the torque converter this time, fluid swap and flush. They didn’t see any metal in the pan, so they didn’t do a full rebuild. So far so good this time. September of 2022.
How is this torque converter holding up for you still??? Am wanting to swsp out the shitty torque converter in my 2015 silverado 6spd. And think this may be the one I want
Great video and information. My TC failed at 82K miles and shredded my transmission. Fortunately for me my 2014 was still under its 100k mile powertrain warranty so I had it repaired for free though it took two and a half weeks. My transmission was so trashed I actually got a new one and not a reman. I also got the upgraded TC installed as well at no cost to me.
Always nice when the warranty comes through!
Which truck have 6l90 or every truck have 6l80. Thank you
im at 113K miles on my 2016 Sierra and i think my TC and tans are toast, I was able to get a trans off a 2018 silverado LT with 5K miles on it (same 6L80 trans). The truck was totaled but trans still good. planning on doing the swap in a week. my questions are: do you think any programming/relearn is required for the whole trans swap? secondly, while its down should i upgrade the torque converter or just use the OEM?
@@utrocker7 I would definitely upgrade the TC. That's what caused my trans to fail. As for the programming, my guess is it will need to be reprogrammed or at least a relearn for sure.
I agree with Michael
Confirmed! My TCC failed with 108k on the clock in my '17. Went with a reman trans. It is my belief that the AFM operation makes the TCC work much harder and thus reduces its already short life.
Seems like I got mine swapped out just in time!
You should have replaced the Front Seal as well!
I believe that as well. Also contributes to the known cylinder misfire due to stuck lifter issue. I bought a $60 device to plug in the OBD port that disables the AFM and man does it ever respond better.
Does it have to be plugged in all the time?Or is it a one time thing, otherwise?Does your p c m still work after three months@@ronwilson5476
I've been a professional mechanic for over 40 years. I would never replace a torque converter without first replacing the torque converter seal. The seal has got over 100k mikes on it. It's going be running on a new surface. It is 10 times more work to replace it after it's all put back together.
Do you have the OEM part number for that on the 6l80? Think I screwed myself, potentially. Didn’t replace the seal and I’m having to add a ton of pressure to get the converter to stay locked. It either locks smoothly but slips with applied throttle, or locks super harshly and doesn’t slip as often. Thoughts on if it’s that seal, as well as the part number, if you know it?
Really nice to see you guys getting the truck back together after all this time.
Getting there! Definitely took a lot longer than planned
Your DOD delete video series and other videos related to that truck have helped greatly. Thank you for taking time to make helpful content
Very welcome!
The ZL1 converter has a dual disc lockup clutch, and should have a slightly higher stall speed. Pop a new seal in the front of your trans since you are there! Pack the seal lip with grease, apply some lube to the torque converter shaft OD, and let er' rip. Thanks for the vid.
good tips!
Do you have a part number for that converter? I’m looking at one myself.
Great video. I had that same issue of transmission shudder in my 2017 Sierra at 30K miles. The dealer replaced the fluid. It happened again at 57K miles and this time they replaced the torque converter. I was glad I purchased the 100K power train warranty when I bought the truck, I have 10 months left on it!
lol this comment was exactly 10 months ago. Hopefully you are having no issues
Thank u for the video. About to do my first converter change. Went out at about 160k miles. Gonna use the amsoil as well.
Glad it helped! Good luck with the swap
Did you just swap in a new converter or did you do a full trans rebuild too?
The common problem with these transmission is the failure of the main pressure regulator valve in the pump, which drops the line pressure on these unit. In the early model the output shaft had a design where it also cleaned the fluids by catching debris with centrifugal force as you drove the vehicle around. Early unit use to go up to 200k miles with very little service. Then gm change the design of the out put shaft and more metal shaving (practical's) from the planetary sets started to float around in the fluid. So it is paramount to change the fluid on these units every 25 to 30k miles. Changing fluids on these units will help prolong the life of these tranny. Please do a complete transmission fluid service as you are installing a brand new Converter. Hope this helps and most likely you have done the oil change on it.
Frequent fluid and filter changes are a must for sure! I plan to service it every 30K miles as you suggested 👍
Would a pump pressure regulator not throw a code and a dash light? I have the shudder but no codes whatsoever.
@@davidouradnik7925 No it does not set a code for a worn pressure regulator valve. Most of the time it will pick up a clutch pack is slipping code or solonied performance.
I have a shudder and no codes. I'd like to just change the torque converter but everyone says it won't work or it won't last.
Never overheated it or burnt the fluid,and the fluid has been changed several times and looks good.
My 6L90 TQ from a 2017 Silverado HD 6.0, lasted 75,000 miles. I hope your upgrade last longer than mine did.
Good to know that it failed that early. I am planning to swap to a billet converter around 200K miles which would be around 92K miles total. Sitting at 136K roughly right now but maybe I will change it earlier.
My TC in 2017 2500 with 80k grenaded the tranny dropped 5800 for new trans
I got 195,099 miles out of mine. But it went full self destruct within 15 miles…. Started to feel a little bit of a slip.. then started up a pretty good grade and it literally started screaming, and I lost all but 1 st gear. Luckily I was only a few miles from home and limped into the driveway… replacing it with an updated L6-80 C-5… apparently this is a better option for replacement.
Thanks for the info - what brand of TC did you get for your L6-80/C5? If you could post the link, that would be awesome. Thx!
Love your videos man. I plan to do the same DOD/AFM delete to my truck by following along your videos. Definitely going to look into a torque converter swap now too
Awesome! Glad they have been helpful!!
After seeing this video me too. I’m pulling my 5.3 in a few months and I will definitely be replacing that torque converter while the motor is out.
Definitely a good idea. If you want even stronger, go with a billet converter.
@@TheSundaeDrive where did you get the converter
I have a link in the description but I got it through my local dealership
Great video! Thanks for this solution. My 6L80 blew at 138,000. Thanks GM 👊
That stinks 😔
My 6l90 in a 2017 2500 grenaded at 80k,cost me 5800 for a complete new tranny
I’m at 150k on the stock trans. 😬
@@jwhmerica504my wife’s Tahoe ltz just hit 150k and got the shutter. I’m going to try to just do the TC swap and thermostat delete. We’ll see
@@HardEnduroLlewellyn any luck?
Awesome video I wish I’ve seen this a few months back bc my trans took a shit
Glad to help! Hopefully it will help prevent another failure for you!
Thank you for this video - have a 6L90E in mine, but mileage is quite low so far.
Am surprised you didn't change out the front main seal of the transmission - it's right there, and super cheap and convenient at that stage =)
Generally you don't mess with rear mains unless they're leaking. Better off keeping it sealed because it's hard to get a good seal replacing it.
We do that with Allison builds. If the rear main is good, it stays
@TheSundaeDrive what do you think?
Should replace the green turbine shaft seal also.
Wouldn't hurt!
I have a 2018 silverado 1500 with only 113,000 miles and my torque converter just went out and now I need a whole transmission so that's nice.
Edward Snowden is now a mechanic
@The Sundae Drive, thank you very much for this & your other instructional videos, very helpful!! I have a 6L80 transmission in my 2010 Chevy Avalanche 5.3L, but my TC hasn't failed yet (~130K). Questions: 1) Do you know how much of a different a billet makes - and is your answer based on what you're driving/towing, or overall longevity? 2) RockAuto suggests for me: TC Remfg. B85JMBX (Standard), HDB85JMBX (Heavy-Duty Billet), or B85JMBXF (Flanged Hub). I was considering one of those, but after referring to your 6L80/6L90 article, sounds like I probably shouldn't consider those for replacements? 3) I saw another guy suggests getting a L6-80 (made for Corvette C5) - did you ever look into that? (I'm basically wondering what sold you on the GM 6L90 (24242552)? Thanks!!
my truck is at 180k still no failures knock on wood, 2014 5.3 420hp with tune and running e 85- just did a transmission fluid change and didn't see any metal on the magnet really. looked pretty clean compared to what iv seen. but looking into maybe changing the converter while everything is still working as it should
Excellent video sir, very valuable footage to have access to.
Glad to help!
great video, do you know what the difference in the stall speeds are between the 2?
Have seen the the stl010 Sure-Cool bypass just installed mine keeps your Trans cooler
Haven't looked into it yet. Planning to do the new GM TSB for the thermostat
my 6l90 converter blew up at 102000 miles went with the billet converter with the rebuild
Good to know! I plan to swap it out around 200K for a billet. Which one did you go with?
My torque coverter failed right after you did this video and destroyed my transmission ☹️. Cost me $5k for a reman. My truck is at 163k miles though.
Aww man, that stinks. You made it pretty far on the stock one atleast. Seems like it should almost be standard 100K mile maintenance item
Ask for high carbon clutches because even though that converter is a dual clutch it’s carbon fiber which frays (clogs the lines) use raybestos
This clutch configuration is like the 2015 f-250-150
Just got my truck back yesterday mine failed at 71000 miles luckily I was still a few days away from my warranty expiring.
You are lucky! I would pre-emptively change it before it happens again. Normally they last 80-120K from what I've seen. If you tow a low you'll probably be on the lower end of that range.
Thanks for the information! Got an 07 Yukon Denali at 181k. Transmission is acting up a bit and suspecting the torque converter is on the way out. Going to install a billet TC from Circle D and replace a rear main seal. Wish me luck!
Good idea! Best of luck with it!
did it work
@@brandon367011 Yeah, both worked great. The leak was primarily the rear main seal, but also a leak in the plenium cover. The new torque conver also workes great! The old converter was not holding well and rumors say that a high mileage TC could ruin a transmission by sending material into the transmission. I'm pretty happy with the results.
@@20tea good dead ! I have a 17 Silverado on 35 with only 51k miles and isn’t my daily driver but I should change the TC anyway from a 6l80 to a 6l90 ?
I would recommend a bullet converter. They normally will last until around 100-120K unless you tow a lot. It could fail earlier but not typically
The TC just went on my '15 chevy express 3500 van with 6L90 at 121K. Wish I knew about this problem so I could replace it before failure
That stinks 😔 definitely recommend going with a billet transmission for the rebuild.
So you replace the TC or did it ruin the trans?
147👍's up thanks again for taking us all along with you
how much torque and horsepower is lost going through the 4L80E transfer case in 410 truck rear end before the power gets to the ground that is a growing question I'd like to know
... ZL1/CSTV.. could just got a regular truck 6l90 3 bolt torque convertor. granted I have a ZL1/CTSV 6l90e torque conveter from CDS in my truck.
In the last 2 weeks, my 2014 GMC Sierra sle (131k miles) with the 5.3L started to shift in and out a bit randomly, also occasionally makes a rumble strip feeling at highway speeds when going up hills with just a bit of throttle applied. I just had the dealership do a transmission flush and it is better but not fixed. Dealership said it could just be the torque converter but recommended a full transmission replacement anyways at $5,200 and change. I’m considering my options. I’m handy and have tools, but more carpenter than mechanic. Do I try to save the $1,000 and drop the transmission and replace torque converter to see if it works before spending $5,200 on a replacement?
If the flush made it better in my opinion there is a good chance the transmission is ok and the torque converter may be starting to disintegrate and clog the lines. To me it's worth a shot because the torque converter will need to be replaced regardless. Is the transmission slipping at all? The sooner you replace it, the better chance you have of saving it if that is the issue. That is just my opinion tho as it is hard to know for sure without opening it up
I haven’t noticed it slipping at all. How difficult is it to replace? Easier to pull the tranny out to get at it or the motor? I think the dealer was thinking that if replacing the torque converter, may as well switch the tranny too since it would be out.
Easier to pull the transmission for sure. If you are doing the labor I'd only do the transfer case. A good shop can probably do it in 6 hours or less I would imagine. I've never pulled the trans myself so not positive.
@Fishermanjuice22 do you mean the rps fluctuating a few hundred rpms up and down whe the torque converter is locking up?
The thing like rumble strips is the torque converter clutch starting to fail. It is random slippage of the clutch that shakes the torque converter. It is commonly referred to as torque converter shudder.
Is there a way to know if the torque converter ruined the trans?? Will I be able to tell once I remove the old torque converter
IDK how much the factory gm converter is, but you can find aftermarket billet cover stock stall single disc lock-up converters now for around $500. I went with a unit sold by trans star. Iirc these units are made by a company out of ohio and sold through trans star.
Good to know! I think this ran me around 400 or so but it's been awhile.
How’s it holding up?
@johnnybobgoldstein2823 all 10 I've installed are still on the road with 0 issues. They also had the afm and pwm tc lockup turned off via tune. I have over 175k on my personal with this exact converter.
@@joeinmi8671 I appreciate the reply!
Not sure how the ZL1/CTS-V 6L90 converter holds up (haven't seen any get replaced at work yet) but the 6L90 HD truck converters seem to the same crap as the 6L80 truck ones. We've put converters or worse in plenty 2014-2018 model year trucks. Sad. 07-13 trucks I don't think we've done all of one or two of them at most.
Frend do you think that changeing fluid transmission by mobil 1. Helps? I know a los about it. Thank you
@@andresneira9745 Are you talking the Mobil 1 HP fluid? That's only for the 8 speed transmissions. The 6 speed just run any good Dexron 6 ATF so GM, Amsoil, Mobil, etc. Dexron 6 for the 6 speeds, Mobil LV ATF HP Blue Label for 8 speed.
@@andresneira9745 Changing it will put fresh fluid in which will replace and replenish the additives used to regulate clutch slippage so changing it is still good to do. Every 40-50K, especially if you tow.
Yeah my trasmisión is 8 speed so i will change for mobil 1 because my transmission Shakes some times
I went to chevrolet and they wanet put the factory but i heard that in other chevrolet they put mobil 1. So has 2 diferentes mobil 1?? My truck is a silverado 2017. 5.3 8 speed
Great RUclips site you guys have!!
Have learned a bunch about my 2015 Silverado.
I have had a buddy that owns a transmission shop recommend replacing the tranny. I only have 92,000 miles.
May I ask your opinion please? On my 2015 Silverado 2500 I have a transmission whining sound as I increase speed and slow down.
My question: do you believe this is the torque converter starting to fail?
Thanks so much for the channel and all your knowledge.
hal
The 6l80e torque converter is constantly slipping that's why they fail. Get the 80 tuned to only lock in 5th and 6th. Raise the pressure and they are good
2011 6l80 with 215k miles. no issues so far. fluid changes every 50k miles or so.
I've been changing it each 50k as well, no issues yet
I bought my 11 Sierra LC9 from an elderly local Guy who's a life long GM buyer. He babied the truck as youd expect with all services at the dealership I bought her from. Making the records as easy as it gets for me. I'm a builder so I'm hard on the truck but that's why we buy trucks right? We have the heaviest available package for the 03' year in the 2500hd 6.0 for the severe pulls/loads and she's bulletproof.
However!! 3 years ago I pulled out 6'-10' dump trailer with my half ton! Just to get 3 yards of 3/4" gravel for my own house needed for a walk way. Told the guy out in the local yard what I wanted he said no problem so I figure great I'm heading in to pay as he knew his shit and how to properly load......I come out of the office and he says you're all set man the 3yrads of gravels loaded I said thanks and see you around....
Fckn guy didn't know that the new Bobcat wasn't equipped with the same half yard bucket oh no it had a yard bucket so his SIX FULL BUCKETS almost filled our dump trailer so I'm looking at it like WTF!?? I double checked that's only 3 yards man you're sure and he replied ya man I've been doing this almost as long as youve been alive, what's wrong....so I go back to me truck fire her up and put it in 4wd full on as both axles on the dump were showing a load to put it mildly. The 11' HALF TON! in tow haul got that load moving very easy, but I have no electric brake control in the truck as we have a real full on work horse for that lol and stopping that load was very hard. Knowing something is way off I pulled it to the shop and hooked the work truck to her. It was 6 yards at 3000 pounds plus the dump about 2000 pounds the truck pulled up some long steady grades to get to the shop. So that is legitimately 20,000 pounds my HALF TON was forced to pull and to stop! Honestly she impressed me so much easily pulling the load I was double guessing that old timer way overloaded it, but trying to stop that load took every skill I had so I knew it was over.
At the shop I rolled the mesh cover up and inspected the load myself closely this time. I was extremely pissed off as one clear look even a city boy could tell that's way more than 3 fckn yards man. Had no choice but to pull her to the shop once I left. Between being very disappointed with myself for trusting the old timer down there so much as it is ultimately my responsibility for what I pull with my truck, yet at the same time I, along with all the guys there were absolutely blown away the half ton Sierra pulled that 20,000 plus pound load so easily. They all witnessed me completely stop on the slight grade so a couple trucks could move outta my way, then have to get all that weight rolling again and it did make all 8 cylinders work but she had power to spare! The 2500hd equipped with the heaviest possible setup/package even offered by GM actually had abit harder time getting the load moving even with 4.11 ring&pinion....but the random dumps brakes made all the difference so I decided to pull her all the way home a half hr drive purely uphill by taking all the back roads going slow an easy allowing anyone behind me to pass.
That load was thousands of pounds above even the HD work truck built for it capacity, but the way that 11' LC9 with the 6L80 and 3.52 (I can't remember exact ratio but close enough) ring& pinion pulled that load making it so effortlessly even the Ford guys with diesel were the first to say that's beyond impressive.
Absolutely STUPID! A combination of mistakes/stupidity lead to that. I am telling the truth entirely and ya it's embarrassing as it gets to admit that even tho I know better I STILL pulled off that drop dead stupid move, yet the truck took it.
That gravel was moist as hell but doesn't hold water like sand, still the 3000 pounds per yard is a conservative figure, and there was a full 6 yards in that 1ton dump (rated to haul 4 tons itself)
That's pushing as hard as a guy can to break his truck or have problems of some sort, yet our trucks stepped up, took that ass whippin and just carried on. I definitely got LUCKY and would never allow it to happen again, but the fact remains that the 2011 Sierra 1500 LC9-6L80 3.52 R&P pulled over 20,000LBs off the fckn hitch (rated 10,000LBs max) mostly uphill.
Well done GM👍🇺🇸👍🇺🇸🤯
@@johnserrano9689 3.42 rear end likely. i have the same powertrain you described, and have only towed about 4000 lbs. it did it without any issue, but thats hardly much considering the tongue weight was probably 400-500 lbs. otherwise it gets daily'd, has done about 20k miles a year all its life. gravel roads, minnesota salty winters. rusty but trusty thus far.
That's crazy, I accidentally told about 13K lbs with my 14 5.3 and it was good just couldn't go above 45-50mph
@@TheSundaeDrive it's crazy what we do at times, but the fact we know better in the first place is the funny part in the end. If we damage our trucks being that stupid then we man up, complain as we're lowering the tranny down and out but after a week or 2 we laugh.
The times we get LUCKY we also know enough that it's nothing to brag about lol
I love the 78' GM trucks as an example, but a 78 half ton had no chance of pulling that 20,000lb trailer man let's face it a dam 3/4 ton of the era would be extremely sketchy. But our new trucks we curse out when say a tank pressure sensor goes bad dropping that 5volt circuit putting the truck in limp mode, the truck screaming at us turn off engine immediately as there's no oil pressure! But we know there is. So we gotta hook up the volt meter to the battery ground, other terminal to the grey wire on the MAP sensor watching the meter as we unplug 1 sensor at a time until the 5 volts comes back......but at the end of the day they really have come incredibly far. Fckn 1500 now is equal if not stronger than the old 3/4's an there on up
I guess it's the beauty of such a competitive market 👍🇺🇸
My 2016 6l80 went bad at 110.000 the welds cause the converter to warp so i put a billet converter in it plus a rebuild its works like a champ now i have a fuel leak at top of the gas tank it needs a fuel pump and line
Thanks Cliff, this is great information to know.
Glad to help!
Always replace the o-ring on the splined shaft, you should also have the transmission tuned to not allow TCC clutch to slip so much. I use Hptuners and bluecat software. And dont ever buy a reman converter unless you want to do the job twice.
I've got a 2014 silverado 1500 v8 with 120k miles. When cruising at a steady speed, it downshifts, then upshifts, downshifts, upshifts, around 1700-2100 RPMs. I put it in manual mode and there is no issues whatsoever. Think it can be saved with a full BG fluid change and trans additive?
Did you ever find the conversion flex plate to allow for 6 bolts? Thanks!
As I sit at the dealer watching this video. 130k. Just started feeling some irregularities. Dealer is doing some diagnostics for me. The tech mentioned tc failures. Will know more shortly. Ive watched a few videos and they all seam to be well done. Feel like I’ll be watching more soon. 🤦🏻♂️
Best of luck with it!
@@TheSundaeDrive worst news. Tc failure, transmission failing. Got a quote. I think I’m going to call and make arrangements tomorrow. Just a bit out of my capabilities. Enjoy watching your videos though.
@@two4twentysam sorry to hear that :( make sure if you plan to keep the truck you get a billet torque converter otherwise it will just fail again
How is that 6l90 torque converter holding up. I have a 2013 Silverado with 160,000 mi. When I shifted into gear and hold the brake I can feel the torque converter. I meant off the break and for 2 seconds it's still there but after that it's gone. I thought it was the brakes but I turned and put new brake pads. It's a very light Rumble in the brake pedal but I'm pretty sure it's the torque converter. The reason why is because I had a LS that the transmission was jacked up wrong and it needed a new torque converter. And it feels like the same Rumble you never forget. What's your thoughts
No issues with my 6l90 transmissions so far. I have about 22K miles on it. I do plant to change it out when I hit 200K miles (90K on the converter) to a billet just to be safe.
My 2015 Silverado had this issue at 55k miles. It was still under warranty but the whole transmission had to be rebuilt. It got debris and wouldn't move once that debris clogged it up. If I let the truck sit for awhile then start it, it would move for a few minutes but then it would stop. All fixed under warranty though.
that stinks man - you were fortunate it occurred while under warranty. Can't believe it failed with such low mileage - most of the failures we have heard about were at 80K and above.
@@TheSundaeDrive i believe it was the torque converter at least. It's been a few years. I'd have to find the report from the dealer but I know it said they found debris that was clogging it up. The truck is at 85k now and I haven't had any issues!
It probably was
My 2015 is doing it, just turned 50k. What makes no sense to me is that I purposely had the truck tuned by Diablew to prevent (delay) any future transmission issues. Didn’t really start doing it until after I tuned it and driving it on the interstate more instead of short back road trips. I’m thinking of doing a flush/filter since it’s probably never had one done. But I have a feeling I’m going to be doing a converter here soon. 🤨 tempted to go ahead and fork over the money to do a proper DOD delete with a small cam and a 6l90 converter since I like the stock stall for any future towing needs/keeping torque down low in the power band for my larger all terrain tires. Also thinking of putting an aux cooler and a deeper pan on it to help save the trans.
My thoughts exactly. Preventative maintenance is key with these trucks.
I also flipped the pill in the thermostat
That definitely helps with the temps
Have you done a video on the thermal bypass to keep these things cooler ?
I will be. Not yet.
Check out precision transmission, they did a pretty good one.
Will do 👍👍
You mentioned an alternate higher spec billet TC do you have a link to the specific one you were referencing.
Looking to add a stage 3 cam to my 2014 5.3l 1500 z71 (6l80e), I need help choosing the right stall for the stage 3 cam (219/231) (.630/.630)
Be careful when you tighten the fill and drain plugs, they are tapered plugs and if you over tighten them you can crack the transfer case at the holes.... Lesson learned the hard way, don't make my mistake!!
I am curious that since the 6l90 converter is heavier, more mass, does it affect revving quickness or milagage??
It would be nice to hear from people who have done this mod and not just speculation, Thanks!
Did you know any new infos ?
Old comment, but my dad's 2012 just got a new 6L90 after his transmission died at 187k. It mostly drives the same in terms of "quickness", but the transmission feels a lot heavier when it shifts which honestly is better than the sloppy feeling of the 6L80s. My dad likes it more than when it was stock.
I’ve got a two-part question is there anything you can do to prolong your torque converter/transmissions lifecycle? Also, is there any upgraded tour converters that you can install instead of the AC Delco one?
I have a 2018 Chevy Silverado Z 71 4 x 4
Yes, a billet tc would be the way to go. And frequent filter and fluid change. I recommend every 30k miles as well as a cooler thermostat
Change the fluid more often if you tow a lot
I have a bullet converter I’m installing into my 6L80. The bell housing is rubbing on initial install. Once it’s mounted to the engine will it then slide far enough away that the bell housing won’t rub?
So you didn't bother to replace the seal and o-ring?
Can you give us a update on how the paint on the chassis has held up .Thanks.
I definitely plan to 👍👍 just have to get around to pulling the bed off again
How has this held up so far? Looking to replace the TC in my truck as I’m getting some noises
No issues at all. Billet is better option tho if you can find one you like.
@@TheSundaeDrive over twice the price for anything billet that I’ve seen. Any specific reason for going billet over the 6l90 like towing for example? Unless you’re aware of a billet close to the $400 mark
when you got done do you have a converter lock-up issue? i did the swap and now at 40 mph rpms jump from 1000 1200 and back to 1000 every sec. put my truck converter back in and it was ok.
so i had the dealer parts warranty it and the 2nd on does the same.
Canadian here so it's in kms but I got 280,000 out of mine but it needs done now !
That's a lot! I do plan to go billet before I hit 80K miles on this new tc. Just to be safe.
Why wouldn't you change the 2 seals? Also, if one of the pump nubs is at 10 o'clock then the other is at 4 o'clock seeing as they are 180 degrees from each other
Can you provide part number of the 6L90 torque converter you used? There’s a lot of interchangeable parts I’m seeing between 80 and 90
I’m at 290k miles and just now having issues hoping this fix the issues I have
Is there a GM part number for the 6L90 torque converter? I have 2 I'm looking at one is gm10405 vs gm10403??? Thanks!!
It is listed in the description under the parts section :)
What is the stock stall of the 6l80 vs 6l90 - you mention this is practically a bolt-on replacement - no tuned needed- is this 100% accurate and is the only difference between the 2 tc is the beefer internals?
Do you have a part # for that converter all 2012/15 Camaro torque converters I look up gives converters for a 6l80.
the 6l90 is prone as well. Billet only if u want bomb proof and fluid changes every 40-45k regardless of any magic trans fluid.
Billet is definitely a better option. And I try to change the fluid every 30K roughly to be safe. Which billet did you go with?
@@TheSundaeDrive “Circle D”
My first transmission failed in my 16’ Denali at 32,000 miles and now at 58,000 finally did a service on the tranny and the torque converter is crap in the new replacement:
Drop the link for the torque converter and thank you in advance
Here you go! amzn.to/3oSVMuk also added to the description
Thank you good sir
No problem!
I have a 2015 Chevrolet Silverado V6 4.3 and I been told to replace the torque converter but I was told to get a heavy duty torque converter what do you recommend?
Im wandering after install how long it took before the front seal to start leaking. And that o-ring in the unput shaft for lock up. They are usually junk.
So far so good luckily!
You mentioned there shouldn't be any tuning required. Is that true?
If you replace the torque converter, do you have to get the ecm and tcm reprogrammed?
I have a 2014 V6 silverado, is the converter also failing? I installed a drain plug in the tranny and dump it twice a year minimum
Does the transmission retain the Lock Up after swapping the Torque converter? The clutch-like feeling that engages after 40mph to be able to drive at low RPMs without the Converter Slipping
Of course
In my opinion anytime a transmission comes apart for issues might as well rebuild/build and upgrade
Always a good idea for sure! My transmission is lasting with the new tc so far. 128K miles issue free.
Well, is the 6L90 working? I'm in need of replacing mine, and I need the info on the converter you bought, please! Can you tell me which one you bought? Thanks!
Will this swap also include 4l80e in the 90's/ early 2000 obs silverados
2015 GMC seirra converter failed at 101000 went quick had to rebuild all transmission. It was serviced at 90,000 Change that convertor before its to late.
Agreed. Seems like most failures happen after 100K
Is it abnormal for a break In Period to occur after a transmission rebuild and an upgraded torque converter? I am having shudder and rough shifts that has gotten better, but still occurs 200 miles after the new tc.
I have a 2018 gmc sierra 1500 with a 8L90 and wanted to do a change out with a new torque converter. Who has the NEW torque converter and what is the part number if anyone knows ? I do not want to just put in the same converter that has the same failer problem. Thanks.
Gonna have to do my torque converter!!! Any issues with the 6l90 converter????
None so far for me! 20K miles on it
what is the best torque converter for Yukon XL 2WD 2015 to buy?? the OEM or the aftermarket ones??? appreciate your feedback regards
Aftermarket for sure. Just need to find one that has a good stall rating for your application. I haven't looked into aftermarket options too much yet tho but I will when I start getting near 200K miles in a few years
I have a 2015 suburban what torque converter did you wind up going with? Thx
What's the part number # for 6speed 2015 GMC Sierra 1500 5.3L 4x4.. please help
I have the 6l90 torque converter linked in the description 24242552: amzn.to/3oSVMuk
Question for the group for those of you that went the rebuild route with the upgraded TC. What was the cost because im getting quoted a little over 8k for a remanufactured.
That seems a little steep but probably how much it goes for. The Torque converter itself runs around $1000-$1500 or so from circle D if you go with the billet option.
@@TheSundaeDrive Thank you that was my thought also.
Can I put a 6l90 on a 2012 silverado 4x4 is it better and is it a direct fit? My 6l80 is burnt ima buy a new tranny but if a 6l90 fits I will get it please reply
can you tell me if this 6l90 converter will work for a 2019 4.3 4x4 silverado
I have a question for the sundae drive, can 4.3 liter ecotec 3 transmission accept a 5.3 ecotec 3 engine.
In other word will they bolt up without modification?
Sadly I am not sure. Could he different flywheels and or torque converters. You would need to check part numbers.
@TheSundaeDrive thank you for getting back to me I did some research and from of what I have seen it looks like they will bolt on but their was no mention in changing torque converters etc.
@@josephbenson3784 nice! Good to know!
Hey guys, I’m new here.
I have a 2005 Chevy 2500HD and am swapping transmissions on it now. I have a 4L80E transmission and didn’t know if I could put this on the 4L80 or what I could do to make it better?
nice vid again when will your truck be back on the road'??!!
It's actually been back on the road. Have a coolant issue I'm trying to solve tho. We'll have an update soon.
Can you post the link for the torque converter? Thank you!!!
Does anyone know if this issue is exclusive to the 14+ pickups or if the 2010-13 6l80e equipped pickups have similar problems?
Not sure but maybe someone else will weigh in
My 2011 Silverado had the torque converter go out and trash the trans at 105k. My 2017 Tahoe had the same issue at 75k. I drove the Silverado way harder than the Tahoe so... I'd say yes.
What stall speed should I use for my torque converter ? Complete stock 2015 Chevy Silverado z71
You should stay with the stock stall then most likely. Talk to the shop you are buying the torque converter from and they will be able to provide more insight. Circle d makes good torque converters from what I have heard.
@@TheSundaeDrive thank you
No problem with the 6l90e torque converter on a 6l80e???
Can you put link for the torque converter
where can I get this part mind is a 2014 silverado with 6 speed 4l80 thanks awesome information 👍
I linked to one on Amazon but might be sold out. I purchased through my local dealer.
Appreciate all your video's and the care and details you take. Do you have any knowledge on the 8spd? There's many that have issues vibration/shudder and TQ replacement. My 17 HC with 6.2L has the 8spd, but I have yet to experience anything. Also I use Amsoil since bought new in 2017, from front to back.
Thanks for that feedback! Unfortunately I do not have experience with the 8 speed. I do know there are a lot of shuddering issues and various Service Bulletins out for them. I've heard that changing you something like Amsoil usually helps. If you dealer is able to detect the shudder they have a flush procedure they are supposed to do for free from what I understand. I think you probably have avoided the issues by swapping to Amsoil
Gm tech of 15 years, we just flush the 8 speeds with mobile 1 hplv now, works awesome, on the 6 speeds, it depends on the amount of metal in pan, small typical metal we flush with dex 6, large
Abnormal We replace converter, and will I lnspect pump and pump housing, also sometimes the tecm gets metal that busts through the screen and into valve body,. If ur 8 speed shutters “ it can be pretty voilent, go up hill at steady speed of 35mph with trans well warmed up, if you have the shutter, you’ll feel it.
I have a 17 Sierra with the 8 speed and the 6.2. Had the violent shudder at 30k and the dealer did a fluid swap and flush. 3 years and 27K more miles it came back but was worse with shudder, noise and slippage. The dealer replaced the torque converter this time, fluid swap and flush. They didn’t see any metal in the pan, so they didn’t do a full rebuild. So far so good this time. September of 2022.
Hi will this 6l90e torque converter will fit Silverado 1500 2015 5.3L
If you have the 6l80e transmission it should
How is this torque converter holding up for you still??? Am wanting to swsp out the shitty torque converter in my 2015 silverado 6spd. And think this may be the one I want
8K miles on it so far with no issues!
You need the Billet torque converter for the trans
I'll look into it. I'll most likely swap it out around 200 or so
6L90 will fit in my 2015 silverado . what other convertor can fit ?? please help
If you have 6l80 transmission yes.