2001 GMC Sierra 2500 HD Questions

All 2001 GMC Sierra 2500 HD Questions

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Drove truck few mile light stayed on. Started it to drive to mechanic, light went out as expected. Following starts Light stays on truck starts and runs fine. Mechanic checked both batteries, claims they are good. Th...
I have put A crate engine into this vehicle and now the transmission will not switch to 4th gear. When driving 55-60 my Rpm's are around 2500-3000. When I left off the gas it acts like it upshifts. But when I apply th...
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...
Everything seems to be working except the starter. No clicking or any other noises from it.
they get so tight i have to stop and open the zerks to releave presure, thats normal driving, but comming to a stop i but it in nutrial and use brakes they seem to not lock up so soon
i got my truck washed today and they locked the keys in it after using a slim jim we got into the truck with no problem but now the service ngine soon light and the decreased engine power light is on does anyone know ...
passenger side air is hot no matter where control is set.
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....
changed the plugs wires and fuel filter air filter is clean and no check engine light