defrost isn’t working

defrost isn’t working 1 Answer

I installed a new heater core in my 2000 GMC Sierra but the defrost isn’t working

i have a95 gmc that the fuel pump works some times when it stops if you hit the steering wheel it starts working again any ideas what it could be 3 Answers

97 gmc fuel pump replaced and sending unit replaced but still not working. fuel lines also replaced. What else could it be? 1 Answer

i just replaced my blower motor in my 1990 gmc sierra but now its grinding. Help! 1 Answer

i just replaced my blower motor in my 1990 gmc sierra 1500 bc it stopped working. like every GM fan it got worn in one spot and wouldnt run so i changed it. but now it is grinding?

random misfire problems? 3 Answers

have a slight misfire, hardly noticeable at idle, but noticeable once engine is at operating temp(only at steady speeds)..once it is warm tho it sputters, misfires, and backfires out exhaust(occasio...