Q: Thermostat housing leaks coolant

asked by on February 11, 2016

The thermostat housing is leaking coolant.

Hello. The thermostat gasket is most likely what is causing the leak. The gaskets overtime become hard and lose the ability to seal the coolant passing by the thermostat. The replacement of the thermostat and gasket is the most prevalent fix. It could also be a crack in the plastic structure of the thermostat housing which is causing the leak. I suggest having the cooling system pressure tested by a well trained technician. Pressure testing the system will expose any coolant leaks. A properly trained technician would be able to inspect the coolant leak and make the necessary repairs to have your vehicle running smoothly again.

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

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

Cooling fan malfunction

Hello there. The cooling fan running when the vehicle is shut off for this vehicle is fairly common. In some cases the cooling fan will run when the vehicle is turned off to continue to cool it down for a...

Car won't start

Hi there. Although the voltage looks good on the battery, the unknown is the cold cranking amps; which is what is important asset of the battery for start up. If the AC was serviced yesterday, the battery cables would have...

Loud, grinding noise notice when I start my car.

Hi. These cars have a know problem with the push rods and or the lifters going bad causing knocking and tapping noises. There is also the possibility that the ball bearings in the alternator or A/C compressor are going bad...

Related articles

How Serious Is It When a Hose Is Leaking?
A leaking hose in your car could indicate different problems. Some leaking hoses are more serious than others, but all should be checked and repaired.
How Serious Is It When a Hose Is Leaking?
A leaking hose in your car could indicate different problems. Some leaking hoses are more serious than others, but all should be checked and repaired.
How Long Does a Timing Cover Last?
A A timing cover protects parts such as the timing belt, timing chain, and gears inside of your vehicle. They are made from either plastic, metal, or a combination of synthetic materials. In modern vehicles, the covers are designed to...