When the heater is running the air goes cold when idling. When the RPM's are increased as taking off from a stop the air gets hot like it's supposed to be. Any ideas as to what could be causing this????
sounds like a fluid problem. sounds like fluid is not getting through the heater core until rpm's are given and the water pump is sped up then it kicks in. may have a clogged heater core or could be something funny going on with your thermostat. just some ideas. good luck
Is it a manual?? Cause i know my buddy and i had the same trucks (ford explorers) 'cept mine was an auto, his manual, and mine always heated way better then his. We figured it was because a manual transmission doesnt give off as much heat? but that could be a total shot in the dark..
It actually worked a lot better when he put a cold front on his truck to keep the cold air from rushing in the engine bay to much.