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The heat for the interior of your car comes from the heated radiator coolant. When you are driving down the road the water pump circulates the heated engine coolant. If the engine slows and the water pump isn't real efficient you might get cooling in the heater. When you turn off the engine you aren't getting warm water pumped into the heater.
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∙ 18y ago
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Your car heater will run for a while than stop?
Please be more specific ... heater gives off heat, then cold air OR The heater fan runs for awhile then stops running
Heater starts to turn cold when at stop light - what causes that?
The #1 cause of cold air from the heater when the car is stopped, or the engine is idling, low engine coolant levels.
What causes the air conditioner in a car to not get cold and the heater to not get hot?
If it is broken. It could be a faulty temperature blend door actuator.
Car heater blows cold air when not driving?
A car heater taps off engine heat. If you aren't driving, then the engine is cold and there's no heat for the car heater to use.
What causes the heater to blow cold air when the engine is overheating on a 1999 Cadillac Seville?
Low coolant. If the coolant is low then the heater core is not able to transfer heat in to the car.
What causes a heater to blow hot air as soon as you turn it on but then to blow cold air?
If the car is setting in the sun.Heat builds up in the ducts. With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!
What does antifreeze do for your car?
It stops your car from freezing and not starting up in cold weather
What causes fumes to come inside car when heater is on?
Check inside the car undre the dash , check the heater core.
Why is your car heater blowing out cold air when it is on?
Low coolant and a clogged heater core are possibilities.
Heater blowing cold but car not overheating?
faulty control valve on heater or air in the lines
What causes a ford ka car heater to run hot when set to cool?
verry common problem its the heater tap stuck open, you can do a quick fix and bypass the heater, but than you wont hav a heater when its cold of find the tap and close it manually, so i recommend that you replace the heater tap
What causes an unrestrained passenger in a car to fly forword when the car stops suddenly?
Inertia
