Jump to content

Check engine light

bharris515
 Share

Recommended Posts

  • Replies 44
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

BB&Chiveon
BB&Chiveon

Thanks - makes me 1 less level pissed i guess

Posted Images

jj46 Enthusiast

jj46

Posted
Posted

Wow.  P20EE.... the same code that troubled many of us 2017-2018 model year owners with the duramax.  Took a year to get a fix.  In the meantime, my CEL came on probably 20 times.  Nice to see it comes back up in the new model.

Chad Langford New Member

Chad Langford

Posted
Posted

I have a 2020 2500 Duramax a Silverado. Check engine light came on at 500 miles had Chevy reset and Regen comes on every 150 miles been in 9 times field engineer sent fix to government for approval

Girthyhawg New Member

Girthyhawg

Posted
Posted
16 hours ago, Girthyhawg said:

2020 HD light just came in tonight 1900mi... will update after dealer visit.

Just left dealer...

p20EE bulletin #pip5664a

reset nox1 sensor and performed box deduct any test.

 

asked dealer if it happens again, I hear some ppl have issue every 150mi... he said it won’t, so I’m wondering if that bulletin was the software fix?

Shawn T Enthusiast

Shawn T

Posted
Posted

SES light on 4 times since order. 2500 DMax Denali. Going back in on 9/30. The light comes on after a prolonged highway ride then disappears. P20EE, emissions. Correct, no remote start when it’s on and it’s pissing me off. Picked up with the 35 mile run-in and now have 1600 miles. 

Shawn T Enthusiast

Shawn T

Posted
Posted
8 minutes ago, Shawn T said:

SES light on 4 times since order. 2500 DMax Denali. Going back in on 9/30. The light comes on after a prolonged highway ride then disappears. P20EE, emissions. Correct, no remote start when it’s on and it’s pissing me off. Picked up with the 35 mile run-in and now have 1600 miles. 

 

AE290E84-D355-4868-832B-F3CC17D4044D.png

Irish80 Enthusiast

Irish80

Posted
Posted (edited)

Check engine light came on yesterday at 6091 miles.  Going to take it in tomorrow to see what the deal is.  Was towing 200 miles from home so that was fun driving home hoping nothing major was wrong.

 

Edit: OnStar was finally able to get the diagnostics to work and it's the P20ee code.

Edited by Irish80
Dmax2020 New Member

Dmax2020

Posted
Posted

Had the check engine light come on, on my 2020 z71 dmax and also remote start didn't work as well. I have 800 miles on it. I took it into the dealer and i will hear back and update as well. The remote start doesnt work anytime the check engine light comes on, that is a feature as another user said. 

Haftahunt Enthusiast

Haftahunt

Posted
Posted

I was on a 1600 mile one way trip today and got the same check engine light...I was at 1650 on the odometer when it came on...OnStar ran diagnostics and told me to service at my convenience...it’s 20° where I’m at and would like to remote start...won’t be home until the 16th...I did get 20.5mpg over the 1630 miles...way better than my 19 power stroke 

Shawn T Enthusiast

Shawn T

Posted
Posted

Picked mine up from the dealer last night P20EE emissions code 2nd visit.  The first time they just reset it, this time loaded new software for the NOx sensor so I will cross my fingers and wait.  BTW the code only comes in on long highway trips. It usually resets (SES light) on its own a few days after city driving.  Which is nice because you get your remote start back.

BB&Chiveon Enthusiast

BB&Chiveon

Posted
Posted

p20ee came on today on trip - stopped at dealer and they put new fix in - were also doing their trucks on lot 

  • 2 weeks later...
redwngr Senior Enthusiast

redwngr

Posted
Posted

'Remote start disabled' if there is an active CEL was a 'feature' on earlier generations as well. 

 

Dealer not filling the def tank at delivery has also been an ongoing problem, for as long as we've had def.

 

 

For many, this means and early and unexpected warning to add def -- and an assumption that it was because of high consumption rate. 

 

Just like fuel tank level, the def tank is NOT filled at the factory.  For trucks purchased after sitting on a lot this is probably a good thing.

 

 

BB&Chiveon Enthusiast

BB&Chiveon

Posted
Posted
38 minutes ago, redwngr said:

'Remote start disabled' if there is an active CEL was a 'feature' on earlier generations as well. 

 

Dealer not filling the def tank at delivery has also been an ongoing problem, for as long as we've had def.

 

 

For many, this means and early and unexpected warning to add def -- and an assumption that it was because of high consumption rate. 

 

Just like fuel tank level, the def tank is NOT filled at the factory.  For trucks purchased after sitting on a lot this is probably a good thing.

 

 

not checking DEF level is like not checking fuel gauge when picking up new at dealer. Its your fault. CEL has stayed off since fix at dealer last thursday. P20EE fix finally has worked.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Gkistler
      2015 Sierra Denali L86 cyl 5 misfire at idle

      By Gkistler · Posted

      Hi friends - first time poster. I have a 2015 sierra Denali with 150k miles, I’m the second owner and she’s given me 75k of great service. I run a pulse AFM disable device. Starting Thursday when I exited the freeway after a short local ride it started idling rough, with an obvious misfire shake and was down on low end power.  I got it home and hooked it up to my scannner and found no codes but in live data a pretty bad misfire on cylinder 5. I replaced the coil, plug and wire with all new OE replacements (Delphi gn10165 coil, acdelco wire and 41-168 plug). It’s still behaving the same way after firing the parts cannon at it.   I know cyl 5 is a non AFM cylinder so I am not thinking this is AFM related but I’m kinda at a loss. injector? Bent pushrod? It’s running too well over 1k rpm to suggest those IMO. Has anyone chase this issue before and what was it? Any suggestions? 
    • zibzer2
      Pulsating Noise 4Cyl Mode

      By zibzer2 · Posted

      2017 Silverado L83 5.3l 6speed transmission Hello, not a new member but havent posted in a while and my old signup info isnt working so had to create a new account. anyways, I have an issue with my truck and hope someone can spread some light on whats happening: -when it goes to 4cyl mode it makes a clunk sound (but not when coasting or going downhill) -when in 4 cyl mode and under load it makes a load pulsating sound (not a tick). -goes away completely when in M5 gear or when plugging in an AFM delete. Im guessing it is one of 2 things but im not convinced of either to be honest. 1. lifter stuck in v8 mode 2. torque converter shudder realistically it doesn't seem like the TC as there is no physical vibration , and it never happens in v8 mode. but maybe? and wouldnt a lifter make a sound whether with load or not? any ideas let me know please. thank you!  
    • Chuck FB
      Some Assembly is Required

      By Chuck FB · Posted

      Which has made me wonder with the various engine failures of a few brands in the last few years, is it sub par materials such as lifters etc causing failures, or bearing clearances on the crank etc or perhaps bad designing of an engine physically or causing too much load on the components due to the hp/torque they can push out of them. Or is the oil viscosity and additive package of current oils or a lack of oil flow by an oil pump not able to supply sufficient oil at idle or under high load at low rpm. Or is it every item I listed that combined together has pushed the limits so far to the left that there is hardly a margin of safety left and add in some fuel dilution and too long of an OCI and premature engine failure is the result ?. 
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      He is not saying that an SAE *W20 will have more viscosity than a *W40 due to MORE VII polymers. He is saying that although multiple *W40 may post in the PDS the same or similar 100 C and 150 C viscosities that the blenders choice of modifier TYPE and AMOUNT to get his chosen base to grade will not give identical real world viscosities in shear and at temperature. All will pass the SII test but not all will pass the 100 C HTHS (unpublished value) testing the blender does and relies on to get the required by law "percentage improvement' referenced to his last great work.    Tis the problem with the lie. Once told others are required to support it. 
    • PunchT37
      Parking Brake - Automatic Engagement Questions

      By PunchT37 · Posted

      I have a `25, 1500 that auto sets on incline. Never knew that at first. I have the electronic shifter. Just think if it didn`t do that? Unlike a mechanical shift that you can muscle out of park, how would you get this thing out? That would be a problem.   What I found out later is, I don`t have to push the button to release. Just put it in gear.   Setting parameters? Don`t know if it`s possible.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...