Questions & Answers for: 2004 gmc sierra heating

...2004 GMC 2500 HD Sierra they plugs are 100,00 before changing now its time 95000 miles but the wire,s won,t come off also they have a heat shield that goes around the plug wire any hint,s or secrets ...

2004 GMC Sierra Heater does not heat on low RPM The heater will blow only unheated air at idle or until I actually apply at least 1600rpm on the engine. It will heat just fine then. On the road it ...

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.

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? thanks for any help! THE TEMP ACTUATOR

...gmc sierra 2500hd heated seat turns off 2005 gmc sierra 2500hd.Heated seat turns off on drivers side after a few seconds .If the passenger has there seat on it will turn theres off too.Also the the ...

...blowing- 2004 GMC Sierra 1500 yeah it sounds like it is sticking,,,i know some of the GMs have aoring seal in the thermostat and over time it gets stuck inside the thermostat and causes weird ...

2004 gmc 1500 heat is only blowing on passenger side. driver side is blowing cold air. sounds like you have dual zone climate control in your truck. Most likely the actuator that controls the temp ...

2004 gmc sierra 2500hd diesel 6.6 no heat and I replaceed the thermostats Try flushing the cooling system. The heater core may be clogged.

2004 gmc dual ac, driver side vents shift from ac 2004 gmc 1500 with dual ac, driver side vents shift from ac to full heat while the passenger side says in ac mode bad blend door actuator maybe there ...

my ac is blowing hot air? 2004 gmc sierra You can try looking for a blown fuse.look in owners manual under (fuses) AC..It could also be a vacuum lines that control the heating/AC unit