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Q: Bad thermostat causing overheating

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My car is overheating. I think it might be a bad thermostat, but I am not sure.

A: The vehicle will need to be pressure tested...

The vehicle will need to be pressure tested to see if the intake and/or head gaskets are leaking coolant. The thermostat and housing should be checked for leaks. If these checks are okay, then the thermostat should be checked for being stuck. I recommend having a certified mechanic, such as one from YourMechanic, inspect your overheating issue and replace your thermostat if necessary.

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