Mell Can a stuck closed thermostat?
Your vehicle’s thermostat opens to allow coolant to flow through the radiator and cool the engine down. However, if the thermostat gets stuck in the closed position, the coolant can’t flow through the radiator and can make your engine overheat.
What happens if thermostat does not open?
A vehicle can run just fine if the thermostat doesn’t open. It will run on the warm side, not past halfway, and heat the interior just fine. But, when the weather gets warmer outside that thermostat stuck closed will not be able to allow the reservoir water flow and the vehicle will begin to have overheating issues.
What happens when the thermostat does not open?
When the temperature rises to the number you recorded in step #6, the thermostat will start to open. If it does not, or if it doesn’t open until reaching a different temperature (hotter usually), then the thermostat is bad and should be replaced. If it opens at the designated temperature, then the thermostat is just fine.
Can a bad thermostat cause engine failure?
Despite the scenario, a bad thermostat will cause engine failure, and the difference is just the time. Usually, if you used a code scanner to check what is the car’s problem, it will most likely be P0128 (coolant thermostat problem; temperature below/above regulate temperature.)
What should I do if my car thermostat is stuck?
Watch the thermometer. When the temperature rises to the number you recorded in step #6, the thermostat will start to open. If it does not, or if it doesn’t open until reaching a different temperature (hotter usually), then the thermostat is bad and should be replaced.
Why is the coolant not flowing through the thermostat?
Open the radiator back. When you first start the engine, the coolant should not be flowing through the thermostat to the radiator. Simply because it did not reach the required temperature. If the coolant is flowing, this is an indication of a stuck-open thermostat. You can stop the test here.