1998 GMC Sierra "2004 heating problems" Questions

drivers side ac switches to heat 2004 gmc drivers side ac goes to heat stop motor and restart goes back to cool .some times for a few days and then sometimes a few min any body had this problem? ...

air blend door 2004 Gmc Sierra w/dual control heat. one side will blow cold air & the other hot installed new controller. same result air door actuator be the problem ? Replace the broken actuator.

...heating/air system. With the a/c on, the rear vents are producing cool air while the front vents produce only heat. What is the solution to this problem? Thanks. this just happen to me 2005 denali; ...

over heating and low oil pressure 2004 gmc 3500 savanna change oil pump it only cost $100 most like thats the problem

no heat of drivers side blows cold air while passengers side works blows hot air just fine Replace the door blend actuator behind glove box, approx $150 for part, Everyone I know with dual control on ...

2004 yukon horn problem my horn honks randomly as I'm driving down the road obviously there is a short in the system probably in the wiring and likely it is exposed wiring. Motion,moisture, and heat ...

...2004 5.3 2 wheel drive Sierra and have taken it to 2 qualified mechanics to diagnose. However, their respective diagnostic computers cannot pinpoint The oil is clean and undiluted, the air filter is ...

I have a 2004 GMC duramax. I recently had to change both my batteries and after doing so my a/c and heater will only blow air through the windshield vents. When I select a/c it dose blow cold air but ...

A/C and Heater will not blow air.. I have a 2004 GMC Envoy. My A/C and Heater recently stopped blowing air. I know that the compressor works because it gets cold to the touch. While I drive the fan is

2004 mercury mountaineer.heat problem When turning ac knob to heat clicking sound like door opening and closing repeatedly sounds and air blows cold instead of hot. 2004 mercury mountaineer.heat ...