i have an 03ram and i am having trouble with the air conditioner it will come on get cold run for a while then just blow warm air after that. if you turn off the truck and turn back on it will blow cold for a while then get hot agian .any ideas what might be causing this?

 

sounds like either low on refrigerant or plugged evaporator

 

hmm - maybe the compressor is short cycling.

 

more than likely low on refrigerant