I had my heater core replaced in my 91 5.0 last November. I do not drive it that much and did not notice any problems except that the anti-freese smell was gone. Last weekend i noticed something while driving with short pants and no socks.
With the a/c controls on off and the temperature setting (the middle knob) straight up between hot and cold, i notice warm air coming out of the air ducts.
I then began to play with the controls and found that with the middle knob turned all the way to cold the air flow would stop. This does not seem correct. With the left hand knob on off no air should be moving i would think.
This past winter while driving with the heater on, my wife on the passeger side said her feet where cold. Maybe cold air may have been coming thru.
What does this sound like? Is it something i can fix. I hate taking the car back to the shop>
With the a/c controls on off and the temperature setting (the middle knob) straight up between hot and cold, i notice warm air coming out of the air ducts.
I then began to play with the controls and found that with the middle knob turned all the way to cold the air flow would stop. This does not seem correct. With the left hand knob on off no air should be moving i would think.
This past winter while driving with the heater on, my wife on the passeger side said her feet where cold. Maybe cold air may have been coming thru.
What does this sound like? Is it something i can fix. I hate taking the car back to the shop>