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

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 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

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...