2002 Jeep Grand Cherokee "heater blowing cold" Questions

...heater alternates between blowing cold and hot air. Check the coolant level, sounds like you may be slightly low....Be sure heater is on high when filling the system....Look for any air

cold air when the heater is on. 1999 Ltd left vents blows hot air but the right blows cold The center blend housing on the heater/a/c assembly is probably broken.

...driver side is hot on my dual zone heater the driver side control works fine but the passanger side is blowing cold air. U will need to replace the pass side air temp control blend door acuator

...heater can't be warm before the engine is. If it's cold after the engine is hot, there are vacuum controlled "motors" on top of the heater box under the dash that move doors that control heat. Either ...

...Heater blew cold air. Had thermostat replaced. Was ok for two weeks. Started to overheat again, heater blew cold air. Added one half gallon of antifreeze. Mech. says possible head gasket. when the ...

Heater blows cold air when idle When my 1999 jeep grand Cherokee is driving the heater blows hot air when driving but when it idles it blows cold air even though the engine is warmed up, any ideas? ...

...heater is blowing cold air, it could be either the thermastate is stuck in a closed position and you need a new one, or your heater coil has gone out. The way you determine if this has happened , ...

my heat blow out cold air. feel the heater hoses and see if one cold and one hot if so flush the heater if not it could be the heater control valve

...heater has began to blow cold. At 1st the passenger side was colder then the driver's. Now both sides are cold. It sounds like the blend doors are bad but thats not it. I cut into the housing behind ...

...heater on my side set at 72 was blowing good warm air. The passenger side set at 72 also was blowing cold air. I turned the temp. controle on my side to 68 It turned cold. But when I turn the dile on ...