Check Engine Going On/Off

[mckdeezle]

All week my checking engine light has been coming on and off. And of course when Im heading to the dealer, the light goes off.

Any of these codes I should be worried about?

 

[StephenPT]

That's a ton of DTCs - first thing to check is battery charge and terminal tightness. Also, trace the grounds from the battery and make sure their connection points to the body/frame are tight. Is it drivable? How many miles?

 

[mckdeezle]

That's a ton of DTCs - first thing to check is battery charge and terminal tightness. Also, trace the grounds from the battery and make sure their connection points to the body/frame are tight. Is it drivable? How many miles?

I have 13k miles and I am still driving it. Should I not be?

I had gone to the dealership yesterday for an oil change and told them that light keeps coming in and then goes off after a day.The dealer's service department didn't see a problem with these codes. I know NOTHING about cars!

 

[Stbentoak]

Well you certainly deserve an explanation of what is causing them and a resolution. Tell the dealer you want specifics!

 

[Onlyone]

That looks like a battery issue, or maybe a ground.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

IMO, any codes that are cleared and come right back represent issues that NEED to be investigated and resolved. There is nothing normal about that amount of codes that you have.

 

[avalonandl]

I would have them check for a loose cable or a bad battery.

 

[mckdeezle]

I would have them check for a loose cable or a bad battery.

From just my minimal Google searching, what you are saying seems to be a possibility.

 

[mckdeezle]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

IMO, any codes that are cleared and come right back represent issues that NEED to be investigated and resolved. There is nothing normal about that amount of codes that you have.

I've only been in here a few months, shortly after I bought my babymax

 

[steiny93]

If the light comes back on take it back to the dealer
repeat above

Do the above, otherwise you'll get out of warranty and be footing the bill yourself.

 

[Eusibius2]

Did you ever find a solution? What was the result? I had a funky, kinda similar issue. The Mgr for my dealers svc dept told me that all the U codes don't really mean anything, and always pop up all the time and that they're harmless. The P and C codes are concerning though. Like others have said, it could be a bad wire. In my case, it was one of the pins in the connector that was loose.

Transfer case & parking brake issues

I'm stumped on this one, and could use a little 'online support' to help make some sense out of this. Short story: 1. 2022 Z71 6.2L, 10k miles. Had it for 13 months with Zero issues 2. Heated Steering Wheel retrofit is finally available 3. few weeks ago, could not shift into 4WD HI (pic...

www.tahoeyukonforum.com

 

[mckdeezle]

Did you ever find a solution? What was the result? I had a funky, kinda similar issue. The Mgr for my dealers svc dept told me that all the U codes don't really mean anything, and always pop up all the time and that they're harmless. The P and C codes are concerning though. Like others have said, it could be a bad wire. In my case, it was one of the pins in the connector that was loose.

Transfer case & parking brake issues

I'm stumped on this one, and could use a little 'online support' to help make some sense out of this. Short story: 1. 2022 Z71 6.2L, 10k miles. Had it for 13 months with Zero issues 2. Heated Steering Wheel retrofit is finally available 3. few weeks ago, could not shift into 4WD HI (pic...

www.tahoeyukonforum.com

I'm sorry for such a late response but yes the resolution was just a bad connector. Such a simple fix solved everything. So happy it was just that.

I appreciate everyone's expertise on this issue. I am such a space cadet when it comes to cars.

 

[mckdeezle]

Deja vu....‍

The engine light came on AGAIN. More lost communication codes.

The last time they replaced a cable that had bent prongs. Hopefully this is the last time this matter happens

 

[Doubeleive]

Deja vu....‍

The engine light came on AGAIN. More lost communication codes.

The last time they replaced a cable that had bent prongs. Hopefully this is the last time this matter happens

it's going to be the same issue as before bad ground or connection somewhere.
things don't all go bad at once..... particularly when they are completely unrelated to each other.
if it was something like overtemp, hvac turned off, fan malfucntion, reduced engine power, etc those type's of things are all related to one thing.

 

[blackelky]

I really hope they work out the kinks i wanted to get a 3.0 after my tahoe dies