Q: How do I remove a broken bolt out of thermostat housing

asked by on March 19, 2017

Tried to replace thermostat and one of the bolts snapped off

My car has 290000 miles.
My car has an automatic transmission.

Thermostat Replacement $157.20 - $759.78 Get a Quote

Hi there. If the bolt is sticking out, then you can use a pair of vice grips to help remove the bolt or weld on a nut. If the bolt is broke off inside the threaded gallery, then you will have to drill out the bolt and use a tip to clean out the threads. Make sure that you put a rag in the thermostat flange area on the engine before drilling and remember to remove the rag when you are done. If you need further assistance with the broken bolt on you thermostat housing, then seek out a professional, such as one from Your Mechanic, to help you.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I use the seat heater?
Your Accord may be equipped with front seat heaters. The driver’s seat has a heater in the seat bottom and the back, but the passenger seat only has a heater in the seat bottom. The back contains sensitive electronics for...
Diesel truck broke down. No steering or brakes.
I believe that the towing company is correct. Heavy duty trucks get their power brakes hydraulically instead of a vacuum booster like passenger cars. Heavy duty trucks actually get their assist from the power steering pump fluid. So, if your...
My car shakes or vibrate at a stop
Hi there: Unfortunately, neither of those three error codes are associated with a component that is causing your vibration issue. The P0135 (https://www.yourmechanic.com/article/p0135-obd-ii-trouble-code-o2-sensor-heater-circuit-malfunction-bank-1-sensor-1-by-jay-safford) is related to the O2 sensor, and P0421 (https://www.yourmechanic.com/article/p0421-obd-ii-trouble-code-warm-up-catalyst-efficiency-below-threshold-bank-1-by-andrew-quinn) and P0401 (https://www.yourmechanic.com/article/p0401-obd-ii-trouble-code-exhaust-gas-recirculation-flow-malfunction-by-jay-safford) are related to catalytic converter...
My high beam light does not work on left side. I don't think it is the bulb.
Hi there. There could be an issue with the high beam switch. Check to make sure that the wires are connected correctly to the high beam switch. Also, check the bulb in the high beam on the left side. See...
When accelerating it feel like something is pulling back
Hi there: This issue happens more often than not with vehicles approaching or just eclipsing 20 years (which your 1995 Toyota qualifies). In most cases, the reason you're having acceleration issues is because the fuel injectors or throttle body (or...
There is a rattling when accelerating only in my 2012 Mitsubishi Lancer
Hi there. This is typically caused by a loose exhaust heat shield. Over time these will come loose and cause this to occur. In most cases the heat shiled can be welded to keep it from making noise. In other...
My BMW 2008 535i wont start after replacing the water pump and the Idrive will not turn on when trying to start
You should remove key FOB from vehicle and close and lock all doors and hood and then let vehicle sit for at least 10 minutes or up to 30 minutes and then using key FOB to unlock doors and see...
My car is making a grinding noise when put in gear, and when i come to a stop, while my car is in gear, it starts to jerk
It is not clear if the stalling and the noise are connected. That is, you could have two separate issues. If the car makes noise when you select "drive", that suggests a torque converter or transmission issue. Check the fluid...
When I am in park my car starts to over heat but as soon as I take it out of park it starts to cool? When this happens it also ma
If the engine temperature drops once you are moving that is due to increased air flow through the radiator and also the speed, and hence output, of the water pump increases with engine speed which also tends to reduce coolant...

Related articles

A Buyer’s Guide to the 2012 Dodge Avenger
The The newly redesigned 2012 Dodge Avenger is a really impressive addition to the mid-size sedan market. This model is Dodge’s answer to the likes of the Honda Accord and the Toyota Camry, and while it may not have quite...
A Buyer’s Guide to the 2012 Dodge Journey
The The 2012 Dodge Journey is easy to drive, and it’s not so large that you will have a difficult time parking it. It’s an attractive vehicle that has the power you need whether you are hauling a full carpool,...
2012 Chevrolet Silverado vs. 2012 Dodge Ram: Which One Should I Buy?
When you are looking for a way to get a load of mulch or gravel, or need to haul a large trailer or boat behind your vehicle, chances are you are looking for a truck. Trucks are not meant to...