Q: Q: Thermostat stuck

asked by on

My car gets hot, and the thermostat is stuck.

A stuck closed thermostat will cause a reduction of coolant getting into the radiator so heat can be transferred out of the cooling system. The thermostat will need to be replaced if it is indeed stuck closed and the cooling system should be pressure tested to ensure the system has not developed leaks due to the over stress caused by a stuck closed thermostat and overheating.

Note: Never open the check or open the cooling system with the engine hot or the system pressurized as serious injury can occur.

You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the equipment and training to diagnose the cooling system issue, identify why your car is overheating, repair the problem, and properly fill and bleed the cooling system so it will perform in its optimum range.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Thermostat stuck

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car's thermostat gauge is not functioning right.

The temperature gauge may not go up to operating temperature if your engine thermostat is stuck in the open position. If the thermostat is stuck open your engine may never get up to normal operating temperature and this will cause...

Q: After installing 2 new sub woofers in the vehicle, there was a pop and now the engine will not start.

Hi there. It seems that the ground wires to the amplifier was not hooked up properly and shorted out either the fuel pump or an electrical circuit near the rear of the vehicle. It is best to relocate the ground...

Q: I can't shift my car into drive or reverse.

Hello, the first thing to check on any car that has a transmission dipstick is to check the transmission level. If the transmission level is too low, the transmission won't engage in any gear. In a situation like this, don't...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.