Why does my car cool down when I turn on the heater?
The fact that turning on the heater allows the engine to cool down indicates that the thermostat is not doing it’s job. Your temperature gauge should remain centered from then on, and you can be sure the correct coolant will then be in your engine.
Why is my coolant not getting hot?
There are a few potential culprits for why your car engine coolant may not be heating up: Coolant Level – The first thing to check is the coolant level! If the coolant is low, there may be air in the system, which will lead to localized hot and cold spots.
Why is my car blowing out cold air and overheating?
Engine overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As mentioned above, this also restricts the warm coolant from flowing through the heater core which uses this to blow warm air into the cab of the vehicle.
Why does my Subaru heater blow cold in the winter?
If that does it the heater hot water valve or temperature control could be the problem.. A quick , cheap fix is to clamp it off in the summer and remove the clamp in the winter.. If it’s the Evaporator icing up, after a long ride with the Air on and not producing cold.
What happens when the AC is on in a Subaru?
Check to make sure your cooling fans on the radiator are running when the AC is on. Check to make sure your cooling fans on the radiator are running when the AC is on. Click to expand… yea, both fans are running fine. Engine temp stays normal. Start with the obvious: Once the AC reaches the desired temperature, it’ll stop cooling.
Why does my car AC blow cold air then blow warm air?
But that cold air turns warm fairly soon after because the high side pressures build to the point that the high pressure switch shuts off the compressor clutch. Once pressures equalize, the high pressure switch allows the compressor to start up again. The cycle repeats over and over, providing a short period of cold air, followed by warm air.