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faulty control valve on heater or air in the lines
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∙ 14y ago
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What is wrong if car is overheating and heater blowing cold air?
most likely thermostat stuck less than $ 15 part
Why is your car heater blowing out cold air when it is on?
Low coolant and a clogged heater core are possibilities.
My car is blowing out cold air not hot when the heater is on.?
You need to change your thermostat in the car.
The heathing in your car is blowing cold all the time?
it is your heater core most likey
Why is cold air blowing when heater is on in car?
Low on coolant. Bad thermostat. plugged heater core. Temp blend door malfunction.
Why is your car overheated but radiator full of water heater blowing cold air and knocking sound?
Have you checked your thermostat?
Why would a car heater be blowing cold air?
AnswerBad thermostat, clogged heater core, or a defective heater control switch. If an engine has not been running long it will not have warmed up, the warmth from a car heater usually comes from the engine.
Why is your heater only blowing cold air in your car?
Low on coolant. Stuck open thermostat. Plugged heater core. Temp blend door inop.
1998 Lincoln town car blowing cold air instead of blowing heat?
needs heater core replaced wost likely be hind the glove box
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.
Why is your car heater blowing cold air 2008 jeep 4 d?
Check for a thermostat that is stuck open. Also can be a clogged heater core, or defective heater temperture control valve.
What does it mean if your heater is blowing cold air and your 2002 Buick lesabre is overheating?
Possible causes; Low coolant, broken water pump, severely clogged cooling system. The heater uses the heat in the engine coolant circulating through the engine. It uses a heater core which is basically a smaller version of the car radiator. If there is no coolant flowing, the heater core will not be able to warm incoming air.
