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When a car is moving, the engine generates heat, which warms the coolant circulated through the heating system. As the vehicle speeds up, the airflow through the radiator helps maintain optimal engine temperature, allowing the heater to produce warm air. When the car is stationary, the engine may not generate enough heat, and the airflow is reduced, resulting in cooler air from the heater. Additionally, idling can lead to less efficient coolant circulation, further contributing to the cold air.
What else can I help you with?
Why is your 93 GA GT runs cold and the heater does not work?
If you are saying the heater is blowing out cold air you need to change the heater core which is located inside the dash
Why does your heater in my KIA sportage not work only blows cold air?
it has a dead raccoon stuck in it
Why does cold air work and not hot air on a 95 buick park ave?
Sounds like a defective heater core
If the intake manifold gasket leaks on A 1994 ford explorer does the heater work?
yes it will still work if you get cold air your heater core could be pluged or the coolant is low
If the heater works but blows cold air and heater core is good what do i check next?
Get the air out of your heater core.
Heater doesnt work but cold air blows out?
Low coolant? Bad thermostat? Heater core plugged,restricted or airbound? Heater control cable or valve not working?
On a 1995 Gmc sierra truck why does the air conditioning vents on dash work in every mode except cold air cold air will only blow out from floor vents?
The a/c - heater controller is out...........
How will the heater react if the heater core is stopped up?
Your heater will blow cold air only.
What causes a cars heater to blow cold air?
THE CAUSE for this is that when your cold air is on the petrol is used to create air. and that is how cars create cold air
Why does cold air come from the heater?
possible clogged or damaged heater core
Why does my buick's heater blow cold air?
I would change the thermostat first. If that dont work change water pump
What is wrong if cold air blows out when heater is on?
I assume your car heater is blowing cold air, when the heater is on. It seems that, you have air on your coolant. that air pockets blocks the cooland to travel through your heater. it may be a sign of a bigger problem such as blown head gasket in the old cars, such acura legend
