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When you turn heat on in car it goes between hot and cold air is it the thermostat?
Wiki User
∙ 12y ago
it maybe your heater core is going out recommend replacing it and go from there
Wiki User
∙ 12y ago
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What could be wrong if your 2002 alero's heater air is warm-- then goes cold--then the thermostat goes up and then the heat is warm again and the thermostat goes back down?
Souns like a head gasket to me.
Why is your heat blowing out cold air?
Replace Thermostat
The temperature light is blinking It goes from cold to medium to blinking in your 2000 Toyota Celica Is this a thermostat problem or something else?
Check coolant level in RADIATOR when cold When light is blinking turn on heat and see if you have any. If no heat good indication that thermostat is stuck in closed position and needs to be replaced
Ac works but no heat blows cold air?
Bad Thermostat
What is the principle of thermostat?
The principle of a thermostat is to regulate heat or cold air. Thermostats can be used for rooms, people, or cooking.
How do you know when a thermostat sensor needs to be replaced?
it goes out and your heat will be gon
What happens when your thermostat goes bad?
When a thermostat goes bad in a vehicle, it can make your car overheat. It can also make it t where you do not have any heat inside your car.
What happens when thermostat goes out?
If it's stuck open, no heat. If it's stuck closed, over heat.
Can a bad thermostat cause the heat to blow cold air?
Yes, and it can also make your car to over heat
Why does heater not heat up temperature gage stays cold?
My first guess would be a thermostat stuck open. Replace the thermostat.
My car temperature gauge goes to cold when am driving at 40mph or higher is that my eatercore?
Sounds like it could be a bad thermostat - not closing to allow engine to heat to normal operating temperature
The engine is overheating and you have no heat just cold air blowing?
Probably a bad thermostat.
