Skip the auto shop - Our mechanics make house calls

Q: crack in theromstat housing

asked by on

Antifrese was leaking around the Theromstat housing. Removed the top of the housing and removed the thermostat when I found a crack on one side of the plastic housing. It looks like the housing extends to the other side of the engine. Do I have to replace the whole housing or can the crack be repaired. What would a replacement housing cost and if I repair the crack, what should I use?

My car has 1230000 miles.
My car has an automatic transmission.

A: Hi there. This is a common problem on this ...

Hi there. This is a common problem on this engine. If the housing is cracked then the entire intake manifold needs to be replaced as an assembly. There is no repair that will ensure that it will not leak any longer as it will continue to get worse. Before replacing the manifold though I do a block test and a pressure test to make sure that there are not any other leaks or issues with the engine. Depending on what it ends up needing will determine the cost of the repair. If you need to have this coolant leak in your intake manifold repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair the coolant leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: Roaring sound in the engine.

Hi there. The sound that you are hearing from the engine could be coming from the transmission. If you have a CVT (constant velocity transmission), then they are common to make a sound when driving them. I recommend seeking out...

Q: Hydraulic problem with engine lifters knocking.

Hi there. If the lifters are indeed tapping, then they are probably sticking. Try putting one quart of transmission fluid in the engine and run the engine for 15 minutes at 3,000 rpm. This will thin out the original oil...

Q: Acceleration hesitation

Hello, There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...