Pulsar LT - LIFTER FAILURE Protection? Silverado DFM Delete & Tune
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- Опубликовано: 22 авг 2021
- Pulsar LT Installation on 2019 - 2021 Silverado / Sierra (Trail Boss / AT4). Game. Changer. This thing is DIALED!
Big fan of this so far. RIP Fuel Mileage.
Check out the Pulsar LT product from the video (the one I bought): Linked in products!
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Outstanding! Just purchased a 2019 TB w/ 5.3L, 30K miles. Was sweating the issues mentioned in this video. Now I know what my first mod will be! Thanks! 👍
Just ordered this for my truck as well. Excited! I did the same exhaust upgrade you did so exited to see sound difference.
Bought one two months ago and still waiting on it to get here. After this video I'm really excited for it to arrive!
Ours just experienced the lifter issue. Left us stranded in a bad spot 200+ miles from home. 6000 miles on the 6.2 engine when it went down. Towtruck driver that finally got to us, knew right away the problem. Towed three already this year. We like the truck, don't want to sell it, but don't want to get stuck like that again either. Subscribed!
Sorry to hear that. It’s such a good truck, sad to see what harm small faulty part can cause
I love the little dude in the background he’s just doing his own thing
Little man is always up to no good 😅
Hey man just wanted to say that I have a 2019 Silverado and watching you’re videos have made me smile and relaxed, been stressed lately like everyone in the world. I’ve done small mods here and there and always enjoy to see what you do next. Keep making great content man peace out. Thanks for making me smile 😀
Sorry for the very late reply, I still have my truck and so far as of today 11/9/2023 I haven't had any more issues thanks to the pulsar LT
Just bought a 19 z71 rst
Your costar is the best btw. One good thing coming out of the pandemic is it takes care of all this for you in 2022 as GM trucks won’t be coming with DFM or auto stop start saving you time and money. This is a great product for anything prior though. Great video as always. Go Cowboys!
I did this to my truck no regrets. It's a good product. Jose would disable dfm and start stop and make a few other little tweaks and I'm happy
I got the 2021 RST Silverado 6.2L, I'm bearly at 12,000 miles. And after seeing this, I'm definitely ordering one.
I have a 2019 Trail Boss and a 2018 Camaro ZL1. So far no trouble with the engine in the truck with just over 21,000 miles. Did have to replace the cam and lifters on my 6.2 Camaro ZL1 at just 22,000miles, warranty of course. Hope I don't have to send the truck in for the same problem. Looks like we have the same taste in vehicles. Love your channel, just subscribed.
I just bought a 2021 Tundra without DFM and auto start/stop :). I considered a 6.2l but after watching a few channels break valves and GM admit it's a problem I went another way.
Picked up the Pulsar LT a couple weeks ago after seeing it on some other channels. Most interested in turning off Auto Stop and DFM, but plan to use the tire size and and tire pressure sensor tools as well. Been waiting to put it in until after we (my 3yo grandson and I) install our new Cold Air Inductions Elite that just arrived!
Going through this with mine right now. Owned my 2015 Denali 1500 6.2L just over month. Tough lesson to learn after the fact 😞
I've got the Bullydog GT tuner on my 2008 Silverado. Love it. Does everything I need it to and then some. Pulsar looks interesting and really similar. May look into that for my next truck I get. Thanks for the awesome video as always!
I appreciate it 🤙🏽🤙🏽
Yeah I tried that Max throttle sensitivity setting, and yeah I have to agree with you on that one . I went ahead and just dialed it back to 15% above stock feels pretty good with the lift I put on and the bigger rims and tires
Can’t wait to see what’s in store with this thing! Awesome content as always!
I bought a 22 gmc Sierra 5.3 x31 and installed the pulsar lt at 5 miles and have had no problems at all. Truck has 9800 miles and runs awesome very good product
Aye! New fan enjoy your vids. DFW here as well and just picked my ‘21 trailboss last month. Inspirational stuff bruda you’ve got me hooked already running LASFIT 😂
I have a module on my 2014 sierra with the 5.3, and after a week, the truck is already running way better. no more surging or idle fluttering.
Thank you so much just bought it and installed on 2021 GMC sierra AT4 YOU R THE BEST LOVE IT.😀
Love your videos man. I just bought a 2021 trail boss with the 6.2 clean carfax with 45k on it. I wish I found this video before because I bought the range technology that plugs in to the port that cancels the AFM DFM but that's all it does.
I’m happy my 2021 Silverado 5.3 LT with borla exhaust was ordered without afm/dfm 4600 miles and running strong, but still have auto stop.
have you had any issues? I have the same engine size and auto stop
I installed the Pulsar LT Range back in December of 2020, after emailing an engineer back and forth with the company.
Complete game changer, it was about the same time I installed Borla S-Type Carbon Fiber exhaust and CAI…. 12,800 miles on my 2020 5.3L z-71 and absolutely love driving it!
Cant wait to see your truck lifted!!!
Great video man. I’ve got the 2021 5.3 Trail Boss. Lifters failed at just over 14k miles. Transmission seems to be acting up now. Heading back in to Chevy this weekend😑. Love the truck though, but it is definitely disappointing.
I just ordered the range obd plug in off American trucks for now ..maybe a year of running this I’ll go grab the pulse tune ..I’ll update and let you know how the range plug in works ..thanks for the video I was a day late though lol
I'm looking at the new suburbans with the 5.3 ltr. I would definitely either do a muffler delete or Corsa sport muffler, your truck sounds great!
I have a 2022 Trail Boss in mind, test drove one yesterday, I priced for an additional 2" lift which will make it a total of 4", 20" Fuel Covert, Toyo MT 305 x 12.50. Steel metallic in color. 🤔
My 2017 Silveraldo LTZ had to replace motor at 80K due to failure. They suspect bearings. Oil changed every 5k religiously. Aggravating for this long time GM owner. Great videos. Thanks for the ideas
Was it replaced under warranty?
I went ahead and installed the Pulsar LT on my 2021 TrailBoss 6.2. And wow 🤩 this truck feels like a truck now. Makes a huge difference. I highly recommend.
Can the pulsar LT open the rpm limiter and speed limiter? I too have a 6.2L 2021 TB and this rpm limiter and is really getting up on my nerves :/
@@rayyanadeel3787
You can adjust the Speed Limiter but not RPM
Would this be better than a Pedal Commander and why?
If you are expecting it to keep it from having the lifter failures…It won’t. I put it on my 6.2 AT4 and it’s in the dealership right now with only 23K miles on it. I’m pissed. 🤬
I keep reading that the Pulsar LT does not work on 10 speeds which is what the 2021 Trail Boss LT, 6.2 is... That's what I am getting into on Monday, also about 44K miles.
But based on what I'm reading here, it does function appropriately for a 10-speed, correct? That's what your Trail Boss is, a 10-speed right?
I just added the Pulsar to my 2017 LTZ, DROVE 3400 miles and the mileage didn’t change. It has 92000 on it and runs great. Changed plugs an d wires, but fuel injectors are dirty and don’t know how to clean them. Truck idles ruff when stopped. Hopefully I won’t experience the lifter problem since it is now a V8 all the time. The accelerator is much more responsive with the programming thanks to the Pulsar.
Great video! I make the Pulsar LT circuit boards. Your video is awesome. You do a phenomenal job describing the advantages of having this on your truck. I personally have the Pulsar on my 2019 5.3 L. It's like night and day. It woke my truck up. Thanks for what you do keep it up!
Will the pulsar LT void factory warranty for any of these AFM DFM DOD issues if it shows up when the scan your vehicle ???
@@rogern5368 No, they are currently testing this on my truck. We belive that if you don't change any perameters on the truck with the Pulsar before you take it for inspection (within about 300 miles) it should pass inspection. When you change parameters such as tire size or turn off the DFM, the computer looses the emissions information is what we are thinking. Just like disconnecting and reconnecting the battery. You have to drive the vehicle for 100 - 300 miles so the computer has a log of the emissions. I just took my truck to the dealer and told them the Pulsar was on there. They told me that there is no problem with it. We work closely with our local dealer. When I bought the truck they told me there would be no warranty issues with the Pulsar being installed. That being said, we are still testing the emissions and I will post again on this page when I know for sure what we find out. Also as far is the warranty issue, if you are worried that it will be an issue, remove the Pulsar before you take it to the dealer. It isn't hard to remove it and reinstall it. It's just inconvenient.
Josh what is your 2019 5.3 vehicle ??
I have a GMC Yukon XL ! Is yours DFM ?
Yes it has the DFM. My truck is a 2019 Silverado LT. 5.3L V8.
How does the Pulsar affect idling? Often when I’m working on my heavy equipment I’ll have my pickup idling so I can have the a/c or heat going for an occasional break from the the elements. Would installing one result in my idle fuel usage going up a lot?
Oh my God donuts and coffee Gotta have it soon as I wake up! Love what you doing bro keep it up…
GM took their time about issuing a recall fix for the faulty airbag on my 2011 Silverado but they finally did replace it but it took years.
I added the Pulsar to my 2020 Trail Boss 6.2. I worked great for about 800 miles and caused a fuel rail pressure low code P00C6. Contacted Edge and they sent me an over night label and had it back to me in less than 6 days. Some how the software was corrupted. They fixed, and I reinstalled. I love this thing. Makes the truck drive like it should. Even with a software hiccup, I did not waste on second putting it back on. It is simple to install and simple to set up.
What was your trucks mileage when you added the Pulsar? I'm at 12,307 on my 2021 6.2 TB. I'd rather avoid the bent rod issue before it even happens!
@@cableguyzne I had about 8000 miles on my truck when I added it.
Just ordered mine for my 2021 GMC Sierra AT4 (6.2L). I also found a local fuel distributor here in Oklahoma that sells 94-octane...on my third tank. This trucks ROARS with 94!
You do realize. That higher octane has less power than regular gas. Look. It up.
Depends on the engine/compression. The owner's manual for this truck says to run 93 octane for optimal performance, acceleration, and fuel mileage. Running 93/94 octane DOES exactly that. In other cars/trucks not set up for high octane fuel...93/94 does nothing.
I highly recommend the Pulsar LT. I have had it on my 2019 TB for a yr now and still very happy with it. No issues at all! It’s very easy to install, a direct plug and play, and when I take my truck in for service to the dealership just unplug, and afterwards plug it back in. It saves the settings so no programming it again. Watch out for the throttle sensitivity setting, if you set it on the highest setting your literally spinning tire, especially when it’s raining or wet. lol
5.3 or 6.2?
You mention unplugging it when taking it in to service, so I hope you have insight on my question. Does this void any extended warranties?
@@austinphillips7706 they wpuld never know if yoh unplug it...would they
But...i got a better tip for you
Just shift the truck into L then hit the plus button till you get to 9 it shpuld say L9 on thr dash...this stops the auto stop and AFM
I have a 2022 trail boss I ordered with the 5.3 and it does not have the auto start and stop. Does it still have the fuel management system since it does not have auto start stop? Thanks
Definitely interesting. I have a 2019 trailboss LT z71 and don’t really know if it has DFM. I know it does not have AFM as the little V4 is not present on my truck. I know this does not completely prevent the failure but i like the idea of it if it can help prevent it. I’ll be doing a little more research.
Yeah your videos make me spend money. I didn't even know about this now I need it.
The best way to disable AFM/DFM is to remove the AFM/DFM lifters. Johnson 2110R lifters and hardened pushrods from somewhere like TSP. You still have to tune it out of the ECU, though, and that gets harder and harder with the newer ECU's.
Nice
Can't wait to see the wheels on the Camaro and the bigger tires and lift on the Silverado
Great video. I haven’t bought on for my 2019 high country yet but I plan on doing so. My question is that I’ve had my truck ar the dealership a few time because when I got in to the gas it feels like it’s winding up or try to figure out how many cylinders to run. Did you have that problem?
I'm glad my 2013 4.8L doesn't have it. Last year all 8 cylinders fired all the time. No worry about the major issues it causes either.
All your videos are GREAT, does the pulsar also change the cutoff top speed?
Keep up the good content’ channel is one of my favorites.
I appreciate it! 🤙🏽🤙🏽
Hey! I just purchased a new 2022 1st Gen (prior to 2022 refresh) and am wondering if A) you would still recommend this module, and B) do you still recommend waiting for 20k miles to apply these changes. Thanks!
Finally man!!!! Welcome to the pulsar family
hey thanks for the heads up my friend i bought an 6,2 had two owner and had only 60 clicks maybe this was why then i looked at the 6,2 reviews after watching your video almost pooped my self an kidney with how much people were complain about the 6.2 blown up
That dod/afm issue with the cylinders and lifter has been going since the 2014/2015 models, whenever gm switch to the direct injected engines. It's happening on both 5.3 and 6.2
Yeah my passenger side lifter collapsed at 5,000 miles. It was fixed under warranty. I had to go back to the dealership when they're working on it to get something out of the back of the truck. So I got to see the engine torn down totally incredible the amount of work this guy had to do to install the new parts. This mechanic really did an awesome job there wasn't one scratch or fingerprint anywhere on that paint and I'm really anal about that.
You actually don't need to disable auto start/stop if you are disabling DFM as disabling DFM automatically turns off auto start/stop. It says this in the manual; however, it will look like auto start/stop is still on when you just disable DFM because it doesn't turn the indicator light off. It does disable it though, and the switch becomes useless as pressing it does nothing, the light always stays on.
Also someone asked about the limiter, Pulsar doesn't let you eliminate altogether but you can crank it up to 140 I believe.
I just bought the cool air intake you have and the oil catch can. Do I need to wrap the cord like you did so I won’t hear any noise? Also got a flow master fx muffler I bought today. Need to install everything still. But is the pulser worth me buying??just bought a new 2021 Silverado LT 5.3
Now it's time to go ahead and put that 2-inch for the Trail Boss /GMC at4 lift from ReadyLift on their and then you'll be done at least for the moment
I have this truck and already trading it in because of these weird electronic systems. Although they say they don’t avoid warranty I went to multiple dealerships after an approved lift and they all say it’s voided although a dealership installed an approved lift. They relay you must take back to the dealership that installed it to receive a possible warranty
Would you have to remove the pulsar before taking your truck in for service so the dealer doesnt see it
I like seeing car wash montages because it distracts me from how long it takes me to wash my vehicle
😅facts
What about oil problems my 6.2 high country was very low on oil almost gone but no warning light came on no leaks does the DFM affect it because it drop cylinder making the vehicle work harder?
I have a 2017 Silverado 5.3L, tuned it with a Bully Dog for 87 octane. Wanted to see what the fuel efficiency was with and without the AFM. For my truck, it was worse with AFM active. Highway I can get 21-23 mpg driving around 70-75 mph average, and with AFM active I get around 18-20.
I am so envious about this dudes garage. I have a 65 year old house with a "2" car garage that my 23 Silverado RST doesn't fit in. It might fit 2 clown cars. I want a garage like this badly.
Love the mods you have done to the Trail Boss. What are the top 5 mods that you have done thus far?
Good news lone Star.
I finally installed the pulsar LT on a 2019 Silverado, my exhaust is semi stock I did replace muffler with the magnaflow. I will say this I can definitely feel a difference and I did set the throttle sensitivity to #2 I might try #3 tomorrow. Only thing is though they didn't send me the bracket so I have to call them up tomorrow and see if they can send me one.
After taking off the DFM did it sound different with the MF ?
@@ivnxxmartinez6151
No doesn't sound any different, to hard to tell. Maybe if I had a camera mic at the tail pipe.
@@HowtowithPaulHenderson I thought it would have since all cyls are working and don’t convert to lower. wow maybe it depends the exhaust setup, thanks though !
@@ivnxxmartinez6151
I do have an after market muffler, but it is behind the cab so I can't hear if there is a sound difference.
Lonestar your always putting out that fire content. You helped me so much with questions on my 21 Silverado RST. Question it can do all this even for a 2WD Silverado? I can’t stand the auto stop stuff.
Should also be compatible with a 2wd. I’d check the manufacture’s website to verify though 🤙🏽 thanks for watching!
Quick question. Would you recommend this modification on the 5.3?
Question? I have been told by James wood chev dealership that installing a cold air intake to my 2021 silverado voids warranty? Any idea on this
Great video! I see you have an 08 Silverado, I ask because I just bought a 2012 Silverado 5.3 and I am just discovering AFM? Did you use something similar to fix the 08 AFM? I subscribed. A lot a great content.
Mahalo from Arizona
Is this unit for the 5.3 liter only? I have a 2021 6.2 with 6" lift running 35's on 20" rims. Really worried about engine problems. Bought the truck new and have only put 4k miles so far.
Long live Jerry! I almost couldn't hit the like button but I did!
Where do I find all the steps to do a configuration and be able to activate or not all those features. My auto/stop stops working on hits own.
Any issues with the pulsar and driving with cruise control? Mine would speed up and slowing down, had to shut off the throttle sensitivity setting.
Hi there, I got a 2020 trail boss and I'm experiencing shakes/ vibration in my steering wheel during low Rpm driving/cruising. And from what I could find out on the web several people have the same issue, are You experiencing anything like that?
Do you have a Kam unit?
It be great to use to keep alive memorie of the vehicle
when you discount the battery
Great info man! I am so excited I can hardly wait to finally get my hands on a Trail Boss after I trade my 2015 Chevy in but the prices are straight-up ridiculous around the DFW. I have been following your channel for a bit now and you put out awesome content! Keep up the great work Brotha!!!
Have you done a review on pulsar a year or so later ? If not that would be great. Thanks again for this 🙏🏽
Hi I like yours videos. I have a 2021 Ltz Duramax Silverado. And one the I was playing with all the buttons and I end up disconnecting the stop and go button. And no wrong messages.
Wished they had this for the 2021 Silverado Duramax 3.0. I hate the Auto start/stop too especially with the crank no start problem.
So is the pulsar not compatible with a custom trail boss trim level based off the programming methods?
I was just looking into this for my 2020 TB. Definitely doing it now. Good review as always
Mahalo 🤙🏽
You make a lot of videos where clean your truck before you start doing anything to it. Do you plan on making a video showing your cleaning process and the supplies/tools you use?
Does the 2021 2500 hd 6.6 gas have any options like this? Super cool video man
I have a Cadillac escalade 2011, always serviced at the dealer, at 117k miles camshaft bearing came out of the block, it cost me 9 thousand dollars to get a crate motor from GM installed, at 170k miles they had to remove one of the heads for a lifter failure, i love the 6.2 motors, but I'm disappointed with the reliability
I have the Pulsar LT and it's awesome.
What did you input for the 35" tires? Is it metric? Tried entering 350 but my speedo is off by 5 mphs slower.
After y’all were done with the installation does the radio screen make a weird noise when turning the truck off
Can you use a K&N throttle control module with the Pulsar?..I currently have one on my '19 Silverado with a Corsa performance CAI and Sport exhaust system...and I get that helicopter sound on deceleration. I would like to know if the K&N module will conflict with the Pulsar.
Just bought a 2022 GMC Sierra 1500 5.3L. It doesn’t have auto start/stop currently due to chip shortage. Do you think the DFM is currently disabled as well?
Hey brother, long time sub. Love your videos. Had a question though. Can you run the pulsar LT on a 2021 Trail Boss Custom?
How do u check if your 5.3 Chevy has that do they all have it ? I have a base 2020 5.3 custom with a couple upgrades towing stuff mostly
I have a 2021 LT with the 6.2 and it has no cylinder deactivation or any of the other forementioned fuel saving garbage on it does that motor still run the same lifter
I also noticed that you do not have the window vents at all. Is there a reason behind that or just personal preference?
Hey! I just subbed. Just found your RUclips recently. I have a 2020 LT Trail Boss 5.3 which is stock basically except for an AWE cat-back exhaust and a Pulsar LT. Stock 18” wheels with the dura tracs. I saw one of your vids but I can’t find it now and I want sure anyway what the answer is. Here’s my question… what is the performance of the truck 0-60 with stock wheels ? Best pass? I saw you running one with a 6.2 but I wasn’t sure if you had the pulsar on max throttle sensitivity … plus you had non stock wheels.
Oh, what’s the catch can? Where do you get it? You have so many vids 😵💫 that it’ll take me forever to find this info.
Thanks!! Really like the vids I’ve seen so far 👍.
FYI - Pulsar LT did NOT prevent my 21 Trailboss 6.2L from having lifter failure. 10k miles on the truck. Heavy engine knock. Dealer replacing one full bank of lifters since I'm over 8,000 miles (the GM TSB only allows replacing both banks of lifters if the engine has LESS than 8,000 miles on it).
We recently purchased a 2021 Silverado Lt Z71 and I was delighted to see on the build sheet that it DID NOT come with active fuel management 😊….probably because of the chip shortage 🤷🏾♂️
Same here 2021 LT Trail Boss 5.3
@@nathanbuck81 I’m still worried about all the issues the 2021 GM vehicles are having such as bent push rods and failed lifters. Only time will tell I guess 🤷🏾♂️
It’s my understanding, and I could be wrong, that AFM was only up to 2018. 2019-2021 vehicles were equipped with DFM. Essentially same thing different name. That being said, the failure could occur with either. The only thing I’ve been able to find is that if the truck is equipped with the AFM then you would see a little V4 pop up in your screen. DFM has no such indicator.
If that’s true then I guess there is a silver lining to the shortage that got a lot of folk out there with expensive trucks missing basic essential luxuries like working seat heaters and such. …got to have seat heaters, never want to go without ever again since my first Silverado with that in ‘14!
How ironic. My 2021 Silverado RST is at the dealer for most likely lifters. Only have 4200 miles on her too!
Also, summit racing has a delete but you have to change the cam shaft and the high output oil pump. Is this not required with Pulsar delete?
Love the video man !! I have a 21 trailboss it has been at the shop for over 3 weeks waiting for the lifter replacements to arrive ( they were back ordered), mine failed at 3400 miles! There is a TSB for dealerships to replace both sides if one fails I believe either under 8000 or 8500 miles and the build date it from Sept 1st 2020 thru March 31, 2021
Damn i just got my LT 6.2 TB 3 weeks ago from factory. Counting the days i guess...
How does this change affect your fuel efficiency?
Thinking of getting one for our 2019 suburban. How has this been treating you? Any issues with it? We mainly just want to stop it from going to "v4" (as the dash says) mode when driving.
Is there something out there that stops the speed limiter? I can get passes 98mph
My 2021 trail boss has never done the auto stop/ start engine. Says it's active but has never done it
Does the 21 Silverado custom with the 5.3 have this dfm system? I know it doesn’t have the auto start stop
My new 22 ACADIA AT4-AWD with the LGX 3.6 liter V6. It has the older style AFM. It goes from V6 to V4 constantly. Does Pulsar Lt have a module for this set up as well? Thank you.
Great video. I can not afford a new truck I’m thinking to buy a 2018 Silverado 5.3 with 50K miles on it. How can I make sure that the engine still on? THANK YOU