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Check coolant level? Heater core plugged or restricted? Heater core airbound? Bad thermostat? Water pump not circulating coolant? Heater control cable not adjusted properly?

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17y ago

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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.


Why does your car run at perfect temperature yet the heater blows cold air?

Try your thermostat


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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


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Only blows cold air with the a/c on while driving, your cooling fan or fan clutch is bad depending on the year, make and model.......... Only blows cold air with the heater on while driving, you will have a bad or broken internal a/c - heater control door.....


What is wrong when the heater on a 1988 Lincoln Towan car blows only cold air when the heater is on?

An automobile's heater that blows only cold air could either be a faulty thermostat or, more likely, a faulty heater core. A trip to a mechanic or shop that specializes in radiator and cooling system repair should be able to diagnose and repair any problems.


When car heater blows cold air What is wrong with it?

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Why your car air conditioner blows cold and then hot air?

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