2001 GMC Sierra 2500 HD Questions

Unanswered 2001 GMC Sierra 2500 HD Questions

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Driving the truck is fine, but when the truck is in first gear and wants to go into second gear I have to let off the gas to shift if I don't it shifts hard into second gear, what's going on with this thing?
I bought the truck used and the right rear window has always randomly went up on its own then will not work at all for a day or so. My driver window started this and now is stuck an inch down. When I hit the switch ...
the crankshaft sensor may to blame (I've been told)but how can I be certain before I repair and where is it located?
when the engine is shut off and then restarted the fuel gauge returns to normal?
When battery weakens usually due to little use, the brain causes all kinds of electronic malfunction. Fuel low and gauge says empty but I have 3/4 tank of fuel. Codes show miss fire and transmission stops shifting. Re...
My truck will not start. I went out this morning and stuck my key in and it didn't do anything. I looked down and the gauges were dancing all over the place and I could hear the battery drawing juice, even without the...
The first time we had a problem we had gone to the Dr.and when we came out to start the truck it started and ran for about 15 seconds then died. It would crank but not start. About an hour later after cranking for a f...
i installed new compressor,new drier. and had prof. recharge system. ---no leaks...got ice cold but now it acts like it heats up and shut the power going to the compressor to deactivate the clutch. then i get hot air....