Jack The heater valve is probably not working correctly. It is a vacuum- applied function to turn it off so a vacuum leak should leave it turned on and you should have heat. I have experienced two typical problems here. The mechanical heater door that moves air across the heater core is not adjusted properly - they can be tricky to adjust and get ALL the air to go across the core, OR, the heater valve is faulty. I never thought the heater in my car worked effectively. This last year I changed the heater valve and upon inspection of the old valve I discovered that the valve itself was either assembled incorrectly or the shaft had moved on the open-close arm; in any case, the valve was basically closed all the time. I have good heat now. I just drove it yesterday in 30 degree weather, worked fine. So, the heaters work if you get the stuff to work correctly. Harold McElraft - 3354 --- In dmcnews@xxxxxxxxxxxxxxx, "Jack Singer" <jsinger@xxxx> wrote: > I usually never drive in the winter so I am not sure of the answer. I turn > on the heat but all I get is cold air even after a long trip. > > Any help please. > > Jack > 5823