No heat! Winter is here! Help!
The old girl has over 265,000 on her. She is not blowing hot air into the car.
Fan works, fuses and relays are fine. I put on a new radiator cap, checked
and topped off the radiator fluid, checked the hoses, no leaks. Turn switch
on dash to hot, no heat. Thermostat is fine, temp gauge reads normal. Did
the calibration and while it was going through the motions, at one point I
can feel heat come out so I don't think its the heater core as it is still
producing hot air. But then it goes back to cold. Continues to blow cold air.
Thoughts please?