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GMC Yukon Questions

Get answers to questions about your GMC Yukon at RepairPal. Find solutions, diagnose problems and get back on the road.

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638
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could it be a sensor problem?

changed gas cap twice, garage replaced vent valve but have code. Do not know where purge valve is located but saw evidence of leaking in the rubber gas fill hose from filler to gas tank. I think I need to replace the filler rubber hose.

I'm a young mechanic and I really need this manual for Cummins QSD 2.0 engine, I can't find it anywhere. So please, who can give me a link to get it?

Pops regaless of turningor not tturning

fuses are fine, horn and wiring under hood are good, whats wrong?

No need for detail.

is no check 4wd message and no code.you can hear it trying to switch when you roll the window down.can you help me with this is it the actuator or transfer case switch motor that is bad

It only lights up for a short time if you tap on the dash board.Do you know which fuse to change or is it a short?


The cap has a lanyard that is attached to the inside of the fuel tank door opening.
Trying to find a way to remove it, so I can install a new cap.

Can you advise what might be causing this issue (relay)

Security issues?

When I purchased my 2007 GMC Yukon the passenger power seat would adjust back and forth; however, it would not adjust up and down. Thank you.

I just changed the starter as well as the fuel filter.the fuel pump turns and it starts when I put gas in the carborater but it won't stay on...

Even though I had the code erased. What else could be the problem?