Questions & Answers for: rear heater working gmc yukon

...rear vents operate correctly (blow hot and cold air based on setting). I have checked hoses running to heater and both, supply and return are fairly warm. Fuse for front heater is ok. Car has 102,000 ...

Rear heater not working The rear heater in my 05' Yukon is not working....it does work in the front. What could the problem be? Possible blend door motor (controls amount of heat that comes out). Or ...

...rear works fine..all fuses for heater and front hvac are good...if you turn up rear to high and let it sit with the front control on hot and fan off, you can feel heat coming out of front vents until ...

...on my 04 yukon, the rear A/C works but the heat doesn't Could be the swap valve/damper not opening to allow air to flow thru heater core in rear or control switch not telling  it to

...rear heater will not blow hot air because the blend door Actuator is not working correctly. It seems like it is over travels and gets stuck or something. Tried to reset it by removing the HVAC fuse. ...

rear heater system are seperate , have there own electrical circuits . Could have a couple of different systems ,could have a control processor or relay's an a resistor block . Do you know how to test

...heater on my 1998 Yukon does not work unless I rev the engine up or I drive it. When I come to a stop light it will quit blowing hot air. Also, the rear heat does not come on at all. Sounds like the ...

the heater wont blow or turn on when i use the dial rear heat and fan works but the front heater doesn't work. Maybe your fan motor has quit working ,but first check your fuses

heater fan on Cold air in front not in the rear. Could be several things. If freon level is low, the front will cool but not the back. The rear ac has blend doors to mix cold air with warm, This could

...cold air when we push A/C and getting 90 degree blast ... 2001 Yukon XL 1500 Front heat & air fine, rear ac blows hot as if heater is on in all settings. More results from ...