the ac system is only putting out heat when turned on the coldest setting. I have recharged the ac unit to the propper level and the compressor kicks on and everything gets cold but the air inside the truck does not. condensation forms and drips off. seems to be working just not changing from hot to cold inside the truck.
ac keeps heating on 1999 Ford F-150
by Forest Warden 97F in Richlands, VA on July 03, 2010
My ac unit was smoking real bad.i guess i burned up my condensor or clutch so my buddy unpluggedsomething and said i could still drive and use the defrost.i was just woundering if he was right
When at idle, and the heater -a/c control is in the defrost position, the engine speed will increase from 500 to 700 rpm, then back to 500. If I move the heater - a/c control to the floor or off po...