Q: Q: my thermostat housing is leaking

asked by on

Ok so I bought the car and the thermostat housing started leaking so I thought to take it off and replace the thermometer and the gasket I did then and then put it all back together and now it's leaking right below the gasket on this little lip thing on the thermostat housing and I don't know why it's leaking and I have put sealant in to it
My car has an automatic transmission.

Hi there:

Most of the time when the thermostat housing is leaking it’s caused by dirt or debris that may not have been fully cleaned out when it was replaced. This will cause the gasket to not seal correctly. Other issues might be the wrong part was used for the replacement; or a crack exists in the radiator itself. Double check your install work and inspect the radiator for any cracks near the thermostat or that ’lip’ area; as that can be the source of your leak. If you need help trying to find this leak, or correctly diagnose the source of the leak, contact a mobile mechanic to complete a car is leaking coolant inspection.

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: my thermostat housing is leaking

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: Van leaking coolant

It sounds like there is a large coolant leak, especially if the system is loosing a considerable amount of coolant. The cooling system will need to be inspected for the source of the leak. Many times the source of the...

Q: My car's engine runs rough at idle - 2001 Chrysler Voyager

Hi there. From what you've described/shown, it seems that the mechanic put the timing belt back on one tooth off. If all of a sudden the engine is not running correctly and the vacuum has dropped, then a valve is...

Q: Does the PCM in my 2000 Chrysler Cirrus have to be reprogrammed after replacement?

The repair information from Chrysler says an OEM level scan tool must be used to update the mileage and VIN number in the replacement PCM. If this is not done, a diagnostic trouble code (DTC) will be set. You'll want...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...