Q: Thermosat, Failsafe thermostat

asked by on October 27, 2017

My car started running “hotter” than normal to where the resivoir is pushing out excess fluid, now I’m thinking thermostat right? My question is there is a thermostat that sits on the top of the engine with a coolant bleeder valve, but is there another thermostat a “failsafe” that runs from the exhaust radiator hose from the bottom to the engine? And if so how much would it cost to repair from a mechanic?

My car has 140000 miles.
My car has an automatic transmission.

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