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Range Technologies for 2021 Yukon
Presently at work, waiting for tow truck. Started the Yukon remotely and when I got close it started knocking. All kinds of lights and then the CEL, idling super-rough. Suspecting lifter failure (21K on the odo). Anyone using the range Tech. AFM/DFM delete? I had one in my 2018 Tahoe but when I...- jasonp
- Thread
- Replies: 1
- Forum: General Discussion
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2021 Yukon Demo Mode, tried everything... I think.
No dice... anyone else have any ideas? Spoke with OnStar, they told me to create user profiles and the truck would then save them. Didn't work.- jasonp
- Post #4
- Forum: Audio & Electronics
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2021 Yukon Demo Mode, tried everything... I think.
No "restart in safe mode" option on my system that I could find. I just reset everything back to factory... we'll see what happens I guess.- jasonp
- Post #3
- Forum: Audio & Electronics
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Catch Can. Why only one valve cover?
Got it... appreciate the link.- jasonp
- Post #3
- Forum: Engine & Drivetrain
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2021 Yukon Demo Mode, tried everything... I think.
New to me 2021 AT4. Every time I shut it off it's back into demo mode on the next start. I've tried holding the "end call" button for a long time, disconnecting the battery for 15 minutes, Is there anything else you guys have seen that may fix this?- jasonp
- Thread
- Replies: 3
- Forum: Audio & Electronics
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Catch Can. Why only one valve cover?
So I just just picked up a 2021 AT4 and was researching catch cans. Wondering why install a catch can that only is catching oil from the drivers side valve cover. Isn't all the oil vapor from the passenger side still venting into the air box and ending up in the intake track / valves?- jasonp
- Thread
- Replies: 12
- Forum: Engine & Drivetrain
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2021 gmc yukon denali driver seat doesnt slide all the way back.
I just posted about this with my 2021 AT4... was there any resolution to this?
