Questions tagged [gmc]
A division of General Motors which produces trucks, buses, vans, and other large vehicles.
7
questions
4
votes
1
answer
9k
views
2004 GMC Yukon Denali, intermittent no crank/no start/no noise
OK, it started doing this a few months back with no rhyme or reason. Before this happened, sometimes would start beeping after engine start. A long 18 beep procession. Don't know if related. When ...
- 41
9
votes
0
answers
531
views
Torque convertor shudder? [closed]
I drive a 2011 GMC Sierra 2500HD ex-cab 2wheel drive with a 6.0 gas engine and a six speed 6L90 automatic transmission. I have started noticing what I believe is called "shudder" from my tranny under ...
- 139
5
votes
2
answers
2k
views
Block Test: Can't suck any more air, is this normal? (1999 Suburban)
I performed a block test recently to diagnose a problem I'm having. The liquid stayed blue, but I want to clarify I have done this right. The purpose of the test was to see if I could prove a head ...
4
votes
0
answers
165
views
New LED 3rd brake light stops working
Swapped out LED taillights and third brake light on my '05 Sierra. Tail lights work fine but the third brake light will work when first plugged in but after a short while the cab lights don't work.
- 41
4
votes
2
answers
9k
views
Trouble rewiring O2 sensor harness after dogs ate it
This is a 2005 GMC Yukon 4x4 4.8 L.
Ok, dogs actually ate my harness going to Bank 2 Sensor 1 O2 sensor. The connector from the body side of the wiring is completely gone.
I found a connector I can ...
- 41
3
votes
2
answers
164
views
How do I determine whether this vehicle has a turbocharger?
This is a 1999 Suburban, which did not have any aftermarket turbocharger installed. So, the only way it could have been installed is from the factory. So, how do I find out whether it has one? What ...
2
votes
2
answers
2k
views
Grey smoke when idling 1999 GMC Suburban, coolant system pressure loss
The most recent update is at the bottom. This looks interesting.
The Smoke
I'm confident the smoke is from burning oil. It's slightly blue, absolutely not white.
If the engine is warm and I am ...