Q: Bolt broke by thermostat

asked by on

I was trying to figure out why my car was overheating and a bolt broke off by the thermostat.

There are a lot of malfunctions that can cause a car to overheat. Low coolant level, worn water pump, sticking thermostat, internally clogged radiator, externally clogged radiator, improper cooling fan operation, sludge coated water jackets, collapsed hoses or bad head gaskets. The thermostat is a good place to start, but they can be checked without removing them. The 3.8 in your car has a history of bad head gaskets. It’s also possible that your temp gauge is malfunctioning. A thorough diagnostics is needed to inspect all the parts of the air flow and coolant flow systems. A snapped off bolt can be troubling. Steel bolts can seize and corrode when threaded into aluminum. Heat is usually required and a bolt extractor kit. A qualified mechanic from YourMechanic can come out to diagnose the overheating issue and inspect your thermostat.

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. Bolt broke by thermostat

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: Temperature spiking up after I changed my thermostat trying to get my heater to work.

The heater not working in some cases may be related to the overheating problem you are also having. This may be due to a faulty heater blower motor or potentially a bad heater core. As you know, the heater core...

Q: Check engine light and car idles low/runs differently

This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...

Q: Heater blower

If the blower motor does not respond to on and off commands at the switch, generally the switch is faulty. The turn signal issue is probably not related to the problem with the blower. If you hear the flashing unit...

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...
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.