If you drive without a thermostat, your engine will never reach its optimal operating temperature and your heater may blow cold air.
It happens because driving without a thermostat tricks your engine into thinking it is cold outside, causing it to adjust the gas mixing valve and push more fuel to the engine.
If you live in a warm climate, this should not be a problem. So when your car lacks heat, you can place a large piece of cardboard in front of the radiator and between the radiator and the car’s grill. It will help to keep cold air from blowing across your radiator and further cool your car. When using the cardboard method, be sure to keep an eye on your temperature gauge, to ensure that your car engine does not overheat. If the temperature gauge starts to creep too high, simply stop and remove the cardboard.
Running a car with no thermostat is overall a bad idea to pursue. In any situation, you feel unsure about the condition of the thermostat, use the best maintenance tips, or simply consult the professionals as soon as possible.
