2020 Silverado 1500 Duramax - 1st Check Engine Light!!! (Part 1)
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- Опубликовано: 29 сен 2024
- 2020 Chevrolet Silverado with 3.0l Duramax Diesel threw it's first check engine light this a couple of days ago and I have been looking into what the fault is and showing what you might see if you get a similar "Service Emissions System" fault....
I show what the driver information screen shows when the fault occurs and since this is a little bit intermittent at the moment I have video of when it clears up and then the next morning it's back again. I do clear the code and take a look at the data coming from the system via my EFILive unit just to see if I can capture the true fault. P20BB is the registered, now historical fault and I'm going to see how quickly the dealership can get me in since the fault could limit my speed to 65mph in only 175 miles....
My brand new 2023 suburban with the 3.0 Duramax has given me this code 4 times and cost me so much time off work taking it into the dealer it's ridiculous. I promised my wife this is the last time. If it comes back again I'm calling a lawyer. Same issues. Error, no remote start, emission issue error. Maybe 500 miles total in the 2 month old vehicle and so much headaches I swear. Regret trading in the 4Runner to get this POS.
Sorry to hear about your issue. Do you know what emissions code you are getting? I might be able to help in getting to the root cause of the issue even though you shouldn't need too...
I had this code last year in Feb. The heating element in the DEF tank fails and every time the truck cycles to start up, it sees that issue and even though DEF may not be frozen, it still will put the truck in limp mode. I learned this because I was 500mi from home on a trip (truck had 1200mi on it), so I asked them if they could just bypass the issue so I could continue to drive, it will go deeper into limp mode is what I was told. Eventually you’d be at about 30mph.
There were no parts available in Canada at the time, my truck was stranded at a dealership for almost 10 days waiting to be completed.
If you want more info, let me know.
Thank you for the details and sorry to hear about your troubles. I'm working on part 2 this evening and it will be for sure at least 3 or 4 parts by the time it gets resolved. After clearing my code it went away, even the history one is now gone. I expect it to come back so I'm logging data to see when/why it fails and I'm going to try and figure out how I can make it home from a long trip before stopping at a dealership. That is now my goal... I hate the thought of getting stranded for 10 days somewhere, maybe our warranty should include travel insurance too?? I will keep everyone posted and maybe if I do have a total failure it would be good to compare notes. Thanks for watching.
@@CJIEngineering I had taken a church youth group on a retreat, and the dealership had no loaners for me. It was a smaller city we were in, and a Saturday morning, all car rental places were closed. I spent multiple hours in the phone with GM and finally got a rental through them... only catch was that it was an hour drive away.so I had to pay for a cab out of my own pocket to get there. GM has an odd rental policy too. They’ll only cover the cost of a rental if it’s a GM product, so you could get stuck in other cities that don’t have. GM product available.
Def doesn’t freeze until -11c so I don’t understand why the heater comes on so soon.
I been thinking about issues like this also as I like to pull my travel trailer during the summer.
And I don’t want to have my truck stuck at a dealership for days or weeks on end.
The horror stories of dealers not able to repair the issue in a timely way is all over the internet.
So being able to continue driving is very important.......
8 or 9 amps is normal for a heater running at 12 volts.
I really don't understand it either but the DEF does warm up to 2-3C and then the heater shuts off. I'm thinking that is where they think there is no chance that the DEF will freeze in the lines going up to the injector. I was also able to capture the pump running in reverse pulling the DEF back into the tank once the truck was shut down so the lines are empty when it is close to freezing out. Still has not come back so I'm continuing to test....
Thanks for sharing Chad.
Where did you get the PID"s for torque pro for these? Just got a 2021 yesterday and would love to know when it regens....
Congratulations on the new truck. Make sure you have the Torque Pro addition so you can add custom PIDs. I have a video showing how to add them but if you already know take a look at this Google Sheet for the ones I have added. docs.google.com/spreadsheets/d/1ZPDOeSx4JFwb1nomx5adsc7pYm-sdLimwG0FmNmVhNg/edit?usp=drivesdk
Thanks for the question and let me know if you have any other questions.
What app are you using?
Torque Pro on my android phone. I have also purchased the Banks iGauge. They are not cheap but have a lot of functionality.
Which ODB app did you use in this video?
I mean OBD2
That's just GM motor company
I had the same problem def was clogging up. My solution is any long periods of idling is. When you take off get the motor up to 32-3500 rpm’s it blows out the def from the exhaust. Do it a couple times. I have not had a problem again. I also have high idle switch it does not work to blow out the def. I was babying my truck driving normal lol it’s a beast of a truck you got to beast mode it. It’s made to be beat on its a monster of a motor.
I get the same issues exactly in my 1500 Duramax! I feel like I notice it more often when I spend a lot of time idling or just in park and not driving... And then if I go back to driving for a period of time it goes away.. but even still the error message persists for a few engine cycles. This is so weird and definitely concerning for me.
The 5.3 won't let you remote start with the service engine light on either.
I've been watching your videos and then decided to order one of these trucks last week. I am curious what the app is that you are using to see the detailed diagnostics. I am assuming there is some kind of transmitter you have plug in to the diagnostics port. Would you mind sharing what it is that you are using? Thanks for all the work you put into sharing what you are learning. I, for one, really appreciate it!
He mentions it's "Torq", available on Google app store for Android. You can also get a Bluetooth OBD2 module that it links with. Got mine from Amazon for 100 bucks.
@mike thomas Exactly what in the hell are you talking about? "Torq" is an app. I know full well what the measurement of torque is! That's not what this video is about nor was it what my reply was about. Did you even watch the video or read my reply to the question....or read the question for that matter?
Thank you for teaching me all the things about 'torque"...🙄
Same issue with my lm2, dealer said it was a loose wire in the connector for the def heater. Had intermittent cel prior to that fix. Been rock solid since.
Thank you for the information. I haven't had the CEL come back on after clearing the code... I have been collecting data for every trip just to try and capture an intermittent events.. Glad to know yours had been good since.
This is happening to me with under 9k miles. Brand new 2023.
I have a couple of questions for you. 1. Do you know what code you received? 2. Have you had all of the over the air updates done on your truck? You have the LZ0 engine in your truck and during the break in period you might get emissions performance low codes. There is a break in period for the catalyst that does seem to fix itself but there was also supposed to be an update to make it happen less often/hopefully never. I would be more than happy to look into it if you have a few more details you can share.
Just an FYI I've had multiple newer vehicles where they disable the remote start when you have an engine code, so it's not just this truck, or the fact that it is a diesel. I've also lost cruise control in a BMW when the low tire pressure light had come on. I can appreciate the cars being intelligent and trying to prevent you from doing something dangerous or detrimental to the health of the vehicle, but I really think it's a bit much in some cases. I discovered that my Denali has the fan issue when the block heater gets plugged in. I thought they had fixed this issue, but I guess either that is not the case, or mine wasn't quite new enough. I cleared it with my code reader and will mention it on the next oil change.
..That’s true..check engine light disables the remote start function from the key fob, not sure about the my Chevy app on the phone.
I believe the app is also going to fail. I'll give it a shot and make sure if I get the error back in the morning.
@@CJIEngineering , the fob and app will both be disabled. The same will happen if the hood is not latched properly. On three separate occasions, I threw a check engine light in my L5P duramax, resulting in the remote start being disabled until the code was cleared out.
In your opinion after GM'S statement about going green do you think this engine and diesels in general will be phased out of production in the the next 5 years
Watching your truck's issue closely, my truck has had DEF related emissions CEL since new (first time during test drive @ 55 miles before delivery) , in fact the same messages as your having now, twice in the last 1000 miles and my truck only has ~4.000 miles on it!
I'm currently waiting on parts from my dealer again and can share RO's when I get it repaired, I love my LM2 but this has been my 5th CEL in 4,000 miles and BTW... I noticed as you did that my remote start won't work when my emission related CEL is lit, but the the cruise control did work. One more observation my highway MPG did drop 10-15% when I get the CEL message after the dealer reset my CEL the last time my MPG returned to 30 MPG highway for the first road trip of 100 miles or so? I think it's all related to the DEF system and hope the dealer can find the correct solution soon before i go on any long road trips this Summer! Thanks again for posting it may help many other owners and encourage GM Engineering to focus on this issue which plaques some LM2 engines.
Thank you for the details on what has been happening with your truck. I am working on a follow up video this evening. Spoiler, after clearing the message mine did not come back and I now don't even show a history code :( I'm collecting lots of data and trying to figure out if it's something I caused or if it is a real problem with the heater. I think I have restarted the truck 7-8 times with similar temperatures and added a few hundred extra miles this week. Please keep me posted and thanks for watching. I hope I'll be able to help everyone with some things to look at.
Keep us posted....
Great video. I've been watching as I was considering bying one. Unfortunately this is now what we all face as diesel owners, unless you want to chance and delete. I currently own a 2017 F-250 diesel and worry about similar problems. I use the best oil, filters, fuels additives, get fuel from same high turn over station etc. I ALWAYS drive the entire regeneration cycles, monitor dpf percentage of fullness (by 2 monitors), so I can plan ahead. I always idle down, truck never shut off until exhaust temps are under 375...and still, using your scenario, you could be stuck on the road with camper in tow. As a guys who always had diesels and love them, I have decided to go to a gas powered truck just to avoid these potential emissions issues. I tow 10K or less, so gas will be ok. I will very much miss the power, mileage, smell, the feel, the sound etc. But not all the garbage that comes with owning a modern diesel. I wish you luck
What is the best oil, filters and additives?
@@repairvehicle it's what I decided on after much research and reviewing independent product testing😁
@@billwaterhouse5894 , what brand is it, motorcraft?
Hi Chad. I'm willing to bet $$ it is the exhaust back pressure valve?? We traded emails back in June '20 and I shared that information with you of what happened to mine. Will be interested to see if it is the same issue.
That is disappointing. I can relate with the long distance travel with few dealerships along the route. I travel nearly 2500 miles one way on a recreation trip I take annually. The route is very rural, no dealerships for half that distance. I've been thinking of the 3.0L diesel, the benefit of fuel economy but I'd be stuck getting the truck serviced along the way if something should occur that needed immediate repair. Most of my trips are during winter months, very cold temps and that also would cause even more anxiety. I will stick with my 6.2L for now. My issue with the 6.2L is the lack of availability of premium fuel for a thousand miles and few communities on my travels. Btw, I'm towing then as well. I appreciate the video.
Thank you for commenting. I'm really hoping I can find a way to clear these types of messages to get you through a trip. It would be nice if you could buy emissions credits in a pinch to get you through. Maybe someone a the EPA is going to read this and help us out. Electric trucks I'm sure are the future but I'm pretty sure both of us would be totally screwed trying to go and see stuff, maybe that is the goal????? It still blows my mind that every other gasoline engine can run for it's entire life with that little light on but I can't go 175 miles. Sorry to rant but I wish we could find a solution.
This Check Engine light just came on a few days ago! “Service Emission System... 175 mi Until…” I've had my 2020 3.0l Duramax since February 2020 and I have about 27K miles on it. I immediately started investigating it and I found this channel. I live in Texas and it’s currently in the mid to upper 90’s here. My DEF tank is about 85% full and it’s definitely not cold outside so I can automatically have to rule out that it’s not the DEF heat pump. I was due for an oil change, was at 14% left, so I took it to the dealership the following morning. I told them this issue. They plugged in their eAdvisor gizmo and the DTCs read “B101D - Electronic Control Unit Hardware” and “P20BB - Reductant Heater “A” Control Circuit Low”. They could not fix the issue because “I needed to make an appointment for this service”. I get it and understand that, but at the same time they probably wouldn’t have the parts to fix it and they truck would still be at the dealership. As of right now, the truck is running as it should but the remote start has been disengaged. Assuming from the previous comments and threads, it’s supposed to deactivate if there’s a code/check engine light on. I’m scheduling an appointment for this Friday. Has anyone else experienced this issue yet? Stay tuned...
Yup. Mine just started doing it. Check engine lights on . 78,000 miles
Do you know what the code is that is being set? You can get it checked at AutoZone or Pepboys.
What was the problem?
@@codygoff896 burnt amd frayed wire on a little connector lol
Was the block heater plugged in?
Beautiful truck! Lots of pep for a 3.0l I’m on the fence about buying one, I love my 99 7.3l power stroke I drive it more than my 16 lariat with a 5.0, but something about 33mpg and the comfort and quiet of this truck is amazing, great vid best of luck I hope everything works out well for you!!!
I had this same warning October 2020. Dealer fixed it and haven't had any problems since.
Do you know what they replaced?
Be happy it only limits speed to 65mph. My work truck 2017 ram limits speed to 5mph.
Truth!!!! My employees keep driving till they derate!!! AHAHAHA
Sorry if you answered this in one of your other vids, but do you have a solution to actively monitor regens? I was thinking about getting a Scangauge II like I had in my Cruze.
I ordered my truck over 3 months ago, and it seems like I should invest in a code scanner to clear codes out during long trips lol. Hope you get it fixed!
I'm hoping to be able to suggest something in one of the next videos on this subject. After clearing the code it did go away but I'm not sure if it will come back again and if it does now can I get through the rest of my trip before I see the dealership. That is where my head is at right now. Thanks for watching and commenting. Stay tuned.
If you drive in the city you can interrupt the regen cycle not knowing when you start back up it goes in regen mode again if it got shut off while it was regen If you don’t drive far enough for the regen to completeCycling and this happens 3 to 5 times you will get that message on your screen you need to drive it for a long periods of time longer distances short distance travel for this engine is no good Get you and I dash from Banks so you can see when the regents are happening So you don’t interrupt the cycle best thing you can do is know when that happens Hope this helps. New tech plays like new tech it sux that gm did not put a gauge on the dash to let you know the truck is cleaning the sutt out of the dpf. Great engine. Lack of tech info for the user so you can visit the dealer more often it’s all about the Benjamin’s
Ah, brings back memories of my Cruze diesel
Nice looking truck man - sorry about the check engine :(
Must be GM issue. I have F150 3.0L powerstroke with 65k miles. No issues. Just towed my camper for 1300miles.
Why don’t take the truck to the dealer ?
I have a 2020 duramax and it has been to the shop 3 times already and it all had to do with the emission....the sad part is that It takes approximately 4 days for the dealer to look at it...so it sits there without being seen, this is how much problems chevy truck come out with.
I've had this issue twice now with my 2020 gmc at4 and scheduled and appointment for Wed Aug 18th to see what the dealership will do this time ..
Last time the went through the wiring harness thinking that was the issue I'm in florida and it's in the 90s and cold is not an issue right now
I've heard people living in cold climates were having issues with DEF system. Given you are in Michigan, could be due to extreme cold. DEFinitely a GM oversite. Thanks for the videos and info.
No issues yet here in Alaska. *knocks on wood*
I live in a state with no vehicle inspections so as soon as warranty is up, people delete the DEF system lmao
I have the 3.0 however anything occurs its on the warranty and at the dealership.
I left my dash cam plugged in overnight. Drained my battery. I noticed in your video your battery was well below 14. Mine is the same… check engine light and won’t let me remote start. Happened this pad summer, took about 3 days of driving before engine light cleared. Now I have a 3 amp battery charger/maintainer on the truck. 2022 Chevrolet Silverado 3.0 Duramax with Max Tow.
That is really strange, I have a dash cam also but I don't have it powered on when the truck is off, there is a way to change that if you are using the 12v socket. Has it been cold out in your area? Do you have a way to check the codes or clear them? How many miles are on your truck now?
Being a modern diesel truck hope you get used to seeing that check engine light . The emission systems kill these new diesels . It's such a shame .
@Lawrence Chiasson take a step into the automotive industry as a tech and you would realise your statement is incorrect .. EPA doesn't give a shit about the consumer . It's government ran . That's all that needs to be said there . "Class action law suits" aren't as common as you'd think . Takes alot of backing and money to get them going and sustain them . Plus automakers have unlimited $$ and the best lawyers to back them .. there is loop holes and fine print everywhere to get them out of paying .
I have a 2020 1500 duramax but my gauges don't look like that. Are they digital? Weird our dash is different
is the oil being low a normal thing on the newer Chevy & Gmc trucks? I just bought a 2021 gmc sierra 4x4 and my oil gage stays at 1/4 of the gage at idle. it's only at half when it's cold start.
Mauro, thanks for the question. The LM2 and the LZ0 both use a variable displacement oil pump that varies the oil flow and pressure based on the load placed on the engine. Under light loads the gauge will be around the 1/4 level. The new LZ0 gets up to 3/4 when cold, I don't recall ever seeing the LM2 get much above 50%.
Should have got a FORD or DODGE or TOYOTA or NISSAN
Don't know what DEF you're using but if it's ANYTHING but ionized water and urea, you're taking chances. The cheapest Wally World DEF is the BEST DEF....because THAT is all it is. The Platinum stuff is crap...
I fill up at a local truck stop that has DEF at the pump. Both the Equinox and the Silverado get filled up at the same place so I'm pretty sure it's high enough quality or the truckers would go crazy on them. Good point though.
Did you have your heater plugged in? Just bought gmc with the 3.0
From what I have heard you should not use the heater unless the temperature is below 0 F. So far we haven't had temperatures drop down that low. There is a chance that in the next week or so we will be cold enough to test it out. Keep me posted on how you like it :)
@@CJIEngineering my manual says that DEF freezes at 12 F. That makes me think that it would help? I live in Mississippi. Hopefully I don't have to worry about it. I will keep you posted.
@@mkclean13 the DEF gets pulled back into the tank when it is below 35F out and there is no connection between the block heater and the DEF tank. When you start the truck there is a heater the melts the def and tries to warm it up to above 33F and maintain the temperature above that point so it won't freeze but that only happens when you are running the truck. If you know it will be getting cold one night just make sure you run the truck so it will purge the lines so they don't freeze :)
@@CJIEngineering Thanks for the info. Seems like they could have done something better there. But does that explain why your remote start doesn't work when its that cold?
Its not just GM , Its everyone with diesel engines including farm tractors
Yep, we need to find a way to survive having these systems on all out workhorses... Kind of makes me want to go back to my 2002 Duramax and keep my 1994 Massey 240 around forever.
No issues with my 15 TDI, 80K on it. Got a light on my 21 Silverado with 188mi on it. Not happy
@@rocktakesover wow … what was the issue ?
@@CJIEngineering how is you truck now ? Any issue
Def is the worst thing for diesel truck there nothing but problems my 07 never has given me a problem and I have 500k on it
1000% agree with you. The motors seem to be rock solid just the EPA nannies that need to go on them that cause issues. The guy that is driving my old 2002 needs to do injectors on it but for the most part that truck has been great for about 300k miles. Thanks for watching.
@@CJIEngineering I was thinking about getting a new diesel truck 2020 but I decided to go gas 6.6 l 400 hp 465 tq 2500 instead which so far it's been a great truck. I pull my 6x6 military truck weight of 12000 lbs i flat tow tho to the bush rd and it pulls like my diesel does
I currently own 3 modern diesels... Most faults like this are software or programming issues. DEF tanks are heated all the time and are built for that. I use Wally World DEF with no problems whatsoever... Have for years....No way the DEF injector is plugged with that few of miles.... I've started mine down to -15 not plugged in and no problems... I have a Yukon Denali on order with 3.0.. Not worried one bit...
Thanks for sharing. I would love to have a Yukon or Tahoe as a 2nd vehicle with the 3.0 Duramax. I just want a way to push past that 175 mile limit since all gasoline vehicle can have the CEL on their entire life and they don't get shut down by the EPA.... If you don't mind let me now how you like the Yukon when you get it :)
Just had my check lite come on at 4400mi Its a 2021 Elevation (Service Emission System). Dealer said DEF pump and sensor quit working. Bad thing is parts on back order for another 2 weeks. Told them to keep truck till fix.Plus side is they are going to bill GM for the rental until mine is fixed They had 2 other trucks with the same problem as mine. Also mine has the Injector knock also but said no update to correct the problem.
1
Sorry to hear about your problems too. GM is building a lot of these engines and they are now going into more vehicle so they better get there supply chain figured out or it will be a big black eye. Thanks for sharing.
Idk if you’ve fixed this issue yet or not I’m just not catching up. But the reason your thinking it’s intermittent is because after you drive it a second the def fluid is warming up naturally. More than likely. I’d just have taken it in for warranty service day one and not worried about it
how would the def fluid warm up naturally?
Just wondering on your program setup your using for the fault codes? I plan on going out west in my camper from NW Ohio and fear the same thing a check engine light in BFE and it slows me down or whatever. Just wondering if this error codes climate related seeing how cold it is?
This stinks. I had an error code (P26C0) that showed up for about an hour in October. I pulled immediately over and hit the OnStar button. They told me the code and said that it was safe to drive (because the check engine light was solid and not blinking) and that I should take it to a dealer ASAP. It went away within an hour and never returned. I took it to the dealer and they said that they couldn't do anything with a code. It's been several month and a few thousand miles since without any issues. I pray I don't see any more codes on this thing. On a side note, are we getting that engineer video anytime soon? I really enjoy your videos BTW.
Thank you for the info and for the encouragement. I'm hoping that I never see the flashing CEL, pretty sure they are bad news but I need to look into that too. I'm doing part 2 for this video this evening and the engineer video is still on the todo list. I keep finding things to add, hopefully it will get done in the next few weeks. Thanks again for watching and commenting, I really appreciate it.
I have a 2020 similar miles, had the same thing happen. P2383 code. It eventually went away.
I never got this fixed, online a saw that filling up the DEF tank helped keep it from happening but I can say the heater in the tank won't run unless the fluid temperature is below 45F so it won't show up till late fall, winter or early spring in Michigan.... We will see how this year goes.
What’s the software on the phone call?
It is called Torque Pro by Ian Halkins. He has a free version but the paid version lets you add your own PIDs, well worth the few extra $s.
Did you notice 1 quality issue with DEF? Remember DEF is cold and heat sensitive. Quality is a huge issue the dosser valve gets clogged!
I’m having this same issue. My engine fans kick in high mode too when the “service emission” is on. Did that happen to you?
Mines doing the same thing
Did you find out what was causing it?
Well kind of... I was reading, if the DEF tank is low, this particular error could be thrown by the reductant (DEF) controller. I'm able to read the current on both of the elements and after I filled the tank I haven't had the problem. It also will be thrown if the temperature is under 45F, above that these heaters don't run so the error will never pop. I'm hoping it doesn't happen this winter but if it does I'll make sure I post another "fix" video. Thanks for asking.
So any emission related fault will cause the fans to go full speed and get at a minimum a check engine light and sometimes the DEF light. I have had one other check engine light that caused this to happen. I'm hoping to catch what is causing it so I can get if fixed. The dealership needs to reproduce the error and they were not able to last week. I'm hoping it was a fluke but in the next few days I'll find out after the next Regen.
Keep us posted. Ours is doing the same thing. Check engine comes on and the fans run fast, but no codes are sent to us through onstar. The damn thing will send us an email telling us our tire is low, but nothing when this check engine light comes on.
I have 2020 duramax LTZ as well. I just got this message today. It’s cold here around 15F. But I got it after driving 30miles and going into the doctor. My wife’s equinox has a similar message and def heater issues. They replaced the def tank on her car and it resolved it. Hopefully they can get our trucks going.
How is the truck ?
Chad thanks for sharing. I hate to admit it but I randomly get a CEL here and there. My iDash is able to clear it without issue, I use the iDash for monitoring purposes only. I haven’t taken it to the dealer since all this COVID stuff started. I currently have 16,500 miles on my 2020 LM2.
There is a chance that my OBDLINK MX and Torque Pro could be causing the problem also. After I cleared it it has not come back but I'm doing another short trip this weekend so I'll report what happens as Part 2. I want the light on when I take it to the dealership and see how fast they can fix it to simulate my upcoming 2nd long trip. Thanks for sharing and for watching.
I have 2021 same truck my first diesel. My worst fear is to have something like this when I'm towing my camper but I guess it must of not scared me to bad I bought it anyway. I just hope the Def heater is only on when it cold and not all the time.
That is a good point, I need to see if the heater only kicks in when it is cold... I agree with you about the advantages vs the possible limitations. I did a long trip the summer towing a trailer, no issues and loved the range that I was getting. If it were a gas motor I would have had to stop a LOT more and would not have been very happy. Thanks for helping me rethink what is really going on.
The Democrat’s sent the electronic kill pill to all diesels as voter fraud Biden gets ready to steal the White House. 😳
So if the DEF needs to be heated what happens when your truck sits for a few days in below zero temps and you are unable to plug in?
DEF does not freeze till 12F so I'm not sure why they are heating it around 25F maybe a precaution. The DEF does get pulled back into the tank when temperatures are low and the truck is shut off. It will thaw it out and then pump it up front to be injected. Plugging it in does not warm that tank, only the block has a heater. Still more tests to run to get the process mapped out. Thanks for watching and commenting.
How do you check the codes without a reader on these new Duramax trucks ?
If you don't have a Bluetooth Adapter you can plug in to the OBD2 port then your best bet is to go to AutoZone, Pep Boys, or Advanced Auto, most of them can read the codes for you. Call first to confirm. There is no other manual way to check them. Thanks for the question.
Chad quick question. I’m new to diesels (LM2)and recently received my banks 1.8 super gauge. In your opinion what should I be monitoring on my daily drive as far as parameters? And when I’m towing my travel trailer what are some parameters to be keeping an eye on? This banks 1.8 gauge looks awesome and kinda overwhelming as far as what you can monitor. Coming from a gas Tacoma and not hauling or towing anything I could give two craps about what was going on as long as the gas was good. Any helps much appreciated
Thanks for the question. So the most important thing to watch all the time is the Regen State. I don't have a Banks Super Gauge or Data Monster yet :) so I'm not sure what parameters they can really show. Regen is important for the fact that the EGT2 will be high and EGT1 would be elevated while the truck is cleaning the Diesel Particulate Filter and I always let mine cool down before shutting it off. EGT1 should be under 500F, others may say higher or lower but that's a nice round number. I also like to look at the Boost all the time but Banks has a better universal value MAD, Manifold Absolute Density, this is a combination of air temperature, boost, and ambient pressure. It will give you a relative value for how much power you can make with the motor. If you tow in the mountains it would be cool to see how much you really loose. Other things that I like to see are the DEF consumption to see how long you can expect to go between fill ups. The built in gauge sucks to be kind. More on that in another video that I'm still producing. So probably: MAD, Boost, EGT1, Load would be nice to see all the time. Thanks for the question and keep me posted on how you like the gauge :)
Unfortunately one of many check engine lights to come. These emmisons are a pain in any modern diesel. Best thing to do is get an edge insight monitor to keep track of emmisions in real time. Love your videos keep it up.
Yep. Any hood open on diesel truck on side of road 9 out of 10 emissions problem.
Did they fix it?
Well..... Like I had mentioned in the video, don't clear the codes unless you are crazy like me and love to figure out what is going on... I am working on a part 2 for this CEL dilemma but after clearing the code it is now magically fixed it's self. I am instrumenting the truck to see if I can capture the fault and see if it is something I have done by looking at the data or if I have some other faulty part that will come back again. Stay tuned.
This condition may be caused by a faulty Emission Reduction Fluid Tank heater. There is a TSB they just released how to diagnosis this code. Same procedure for the L5p to.
And they're always on backorder this time of year
It’s a chevy 😂
Had any luck figuring out the issue?
Well I'm doing part 2 of the this video series... After clearing the code the truck is running perfectly fine and my history code is now gone. Thanks for asking and stay tuned.
I have a 2019 silverado with the 5.3 liter and it just give me the service the emission system what could that be since I 'm in vacation about 300 miles from home
Without a code reader it's really hard to say. You can have them read for free at AutoZone, Pepboys, and other chain auto parts stores. If the engine is not missing and ticking a lot, lifter issue, then you should be ok to continue to drive it. If you get the code feel free to send it to me and I might be able to direct you on what might be wrong. Good luck
@@CJIEngineering
Diagnostic Alert: Service the emissions system in your 2019 Silverado within 7 days. Txt STOP to cancel. That's what chevy send me via text
If you pay for OnStar you can call them and they might be able to give you the code. It will be something like P0131 or P245A. There are a lot of code that cause you to get them basic messages.
@@CJIEngineering the code is P0449.
@@CJIEngineering I also filled the tank and it overflowed don't know if that has anything to do with it... onstar gave me the code but they didn't mentioned why it code happen.
The car was built on a Friday.
Congratulations, keep me posted on how you like it....
@@CJIEngineering What I meant with the joke was you have a check engine light on because people were rushing to get your car done on a Friday so they can go home for the weekend. I know lame joke lol. I am looking to buy a 2022 six cylinder duramax silverado coming up this spring.
@@yolosolonorthwest6282 sorry, I didn't catch that but the funny part is that your not to far off. I spoke with a buddy and found out my truck did take a stop at the repair area of the plant before it shipped... I have had a few more little issues with the truck that I'll be posting about soon. I still live the truck and that engine/transmission, still gets a recommendation from my side and I'm looking forward to checking out the 22 with the max tow package... It might be the setup that causes me too upgrade. Keep me posted on what you decide to do :)
Welcome to the CEL club . Feels bad m8.
Thanks :(
@@CJIEngineering Its my second small diesel engine (was in a ecodiesel before ; so i'm used to problems) and I was optimistic with the duramax. Blown up the transmission , no load in the back at 5000km ; thats roughly 3100 miles. And now i'm having weird trouble with the ECM trowing temps codes.... Hope you get yours fixed :/
Solenoid issue. Happened to a friend of mine just recently, In his new gas truck
Wow you should just get rid of the truck 13 minutes of complaining, you are never going to be happy go buy a gas Ford.
you good sir have my attention imma go dig in some GM data bout the def tank heater and parts out of curiosity...
but honestly reading the code what tells you is basically the module sees an open circuit or high resistance in the heater activation circuit, given it can pull its 9 amps comfortably im left thinking what control method it uses: is it a external relay or a transistor/internal relay switching inside the module?
-> given its a external relay you just need to look for the 85-86 pin on the relay and check the contacts as one may had come loose or have crud packed in it, maybe even the relay couldve gone bad.
-> if its the transistor/internal relay then it may very well be a cracked solder joint inside the module thats giving you a hard time or a faulty transistor/relay... OR a loose connector somewhere around the def tank...
if my brain works right and what i learned in all these years in electricity and automotive electronics in school isnt lies i shouldnt be far off the truth... i think.. maybe its just a programming issue affecting cold climates only and they just oversighted the chance of the activation circuit taking longer than a second in due instances...
Thank you. I appreciate your analysis. Where is the external relay located? I am going to try and see if the fault happens again in the morning.
@@CJIEngineering oh sorry i didnt intend to mislead you, so far this is a wild guess of mine, without having a truck to actually check in i have to dig thru the internet looking for the diagram wich i havent found yet ill update you if i do find it tho, cheers!
@@Velkanis no problem... I like your thinking. If you do figure something out I would love to hear about it :)
Interesting. I've had my LM2 Silverado since September and I'm getting up in mileage (15800). I drive it hard and have had only minor issues. Nothing to do with engine and transmission.
I still love mine. I reset it and haven't had it come back yet so no trip to the dealership. This weekend I have another quick towing trip and we will see if it comes back and I'll update everyone. Thank for watching.
Still?
Yep, I'm still really liking my truck. Approaching 40K miles on it. I took it into the mountains last year and the only slightly disappointing thing is the exhaust brake. The truck does not down shift like I would like to use the exhaust brake so I had to downshift manually and it did great. Not sure if that is because of the automatic cruise control I have but I'm not planning on getting rid of it. Next long trip will be back to Austin, TX
@@CJIEngineering Awesome. I loved mine until I traded it last year for an 2500 with a Cummins. My camper was a bit much for the wheel base and weight on a on a short bed 1/2 ton truck. Had exactly 50k on it and traded it two years shy of a year. Had plenty of power, but I never got to test the grade shifting. Only towed my camper on flat roadways before I traded up.
@@mendiesel7932 excellent. You really put the miles on it. The Cummins / Ram is a great truck also, I just wish that truck had a different transmission and preferably assembled in the USA. It might be my next truck if we go with a 5th wheel trailer but I'm also considering getting the 3500 dually so I can tow a lot more weight, don't want to be over weight with my next one. I need to make a decision before the government says I can't buy a new diesel truck!!!!!!
I bought a new 2008 1500 work truck stalled on me around 75k it was a sensor. Replaced it for around 800. The engine gave up on me at 121k!! I used mobil 1 100% syntetic all its life. Like wtf 121k!
Looks like it's a beginning of chevy diesel reliability.
I'm working on a follow up video, it could have been my fault... I know emissions system are the weak link.
Should have bought a dodge....then you know right off the bat that it can't pull shit
Lol... Nice. I just didn't want a truck that would get it's software updated and neutered :)
@@CJIEngineering I just ordered my 2021 chev 1500 diesel can't wait to get it
Where did you get the app for the truck
Is the check engine reset on that app
Thanks for the question. I use the Torque Pro app that can be found on the Google Store. You also need a Bluetooth OBD2 adapter, I use the OBDLink MX that can be purchased on Amazon. I have also used cheaper versions of that adapter with varied success. Let me know if you have any other questions and thanks for watching