Skip the auto shop - Our mechanics make house calls

Q: Bolt problem

asked by on

I have begun replacing my thermostat, but I have a bolt unable to be removed from the thermostat housing.

It is common for this to occur on this engine. It is typically due to corrosion caused by electrolysis. Once this occurs the bolt almost fuses itself to the metal around it. In some cases, using a penetrating lubricant can get into the threads and loosen it. From my experience with this engine, I typically need to break the bolt and re-tread the hole and use new bolts. If you are going to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to repair this.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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 engine whines. It was low on power steering fluid, but adding did not make it goes away. Does it sometimes take a few minutes 2000 Mercury Villager

Hi there - your whining noise is probably due to air still being in the steering system, which can be removed by turning the steering all the way to the right, then to the left - repeat a couple of...

Q: When replacing upper ball joints can you just purchase the instaed of whole control arm

I checked multiple aftermarket catalogs, the Dodge OEM catalog and even E-Bay for possible gray market junk but I can find no listings for separate upper ball joints to install in the upper control arm for your vehicle. For some...

Q: In need of professional mechanic.

Wiring issues can be tough to diagnose. You can enlist the help of mechanic from YourMechanic who will come to your location and who has the training and equipment to assist you. You can schedule a trained qualified mechanic to...

Related articles

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.