Why does my car heater only work while driving?

Why does my car heater only work while driving?

When your vehicle is in motion and driving down the road, then engine coolant temperature tends to get hotter on the engine before it gets to the radiator, so the heater will naturally heat up more when driving around. Top off the coolant if its low.

How much does it cost to fix a car heater that blows cold air?

On average, expect to pay about $800 to fix any coolant leaks in your system. If you were able to locate the leak in the cooling system, you can fix it on your own and save tons of labor cost money.

Why does my car air conditioner blow cold then warm?

Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool.

Why does my Toyota Corolla keep blowing hot air?

Physics laws say that expanding gas cools, that’s the principal behind refrigeration. The compressor, well, compresses the gas, pushes it through the condenser that is in front of the radiator where it (guess) condenses …then the compressed gas is pushed through an orifice to expand and cool.

Is there a problem with the Toyota Corolla evaporator?

Not run constantly, if it does there may me a problem with the evaporator. There were problems with a lot of 9th Generation Corolla evaporators, from 2003-2006 until Toyota found the problem and fixed it for the 2007 model year. I was looking for the exact TSB Toyota issued but couldn’t find it..yet.

Why is my Toyota Corolla’s gas line full?

The compressor, well, compresses the gas, pushes it through the condenser that is in front of the radiator where it (guess) condenses …then the compressed gas is pushed through an orifice to expand and cool. Called expansion valve. If this valve is bad the gas is not expanding …OR not passing through.