GMC Yukon Questions

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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)
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?
Any idea what is causing this to happen? we have changed the oil the crank shaft sensor
I replaced the starter already. It's not the battery or alternates. It's not turning over.
I put my old brake booster back in and I even replaced the brake light sencer that hooks on to the brake bar what ever I try nothing is working.
I'm having trouble with my brake lights not working since I replaced the booster and the brake light switch. Any suggestions.
I changed my brake booster with one out of a Chevy truck and I couldn't get the shifter to come out of park unless I started the motor then turned it off just so the engine died then the shifter would move, but I had ...
And my door locks constantly keep trying to lock and unlock
After an attempted theft of our 98 GMC Yukon we had to replace the whole steering column. Now because of the pass lock system the security light stays on and shuts off the ignition after a couple of seconds. Will repl...
Hear a banging noise when going over speed bumps or pot holes on front left. Shakes under braking, worse between 40-50 mph. And alignment off but just had it done at a shop and wheels balanced?
Noise Slows down at stops. Had the oil changed and water pump replaced. Then this tapping started. Taken to many different places no one knows.Any suggestion? They have check transmission,fly wheel,and harmonic ba...
I had a P0430 code show up about 2 weeks ago. About 4 - 5 days ago white smoke began coming out of the tailpipe. It was steam, no gas or sweet smell, and there was also water coming from the tailpipe and after I parke...