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Can a bad thermostat damage your engine? 200 1979

posted by  sutherml on  Sun Mar 22 12:19 CST 2009
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last visit: Sat Jun 29 19:15 CST 2013
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I have installed a loss of coolant detector in my 244GL since I had a friend's 244GL die due to overheating due to fracture of heater hoses at the rear of the engine.

But if the engine thermostat jams totally shut (or partly shut?) causing a rise in temperature gauge which is not noticed by the driver (no idiot light for temperature) until the coolant boils in the head rupturing hose(s)/expansion tank with clouds of steam, does this damage the engine? Or is the boiling & hose rupture & loss of coolant so rapid that the loss of coolant detector in effect protects the engine from a bad thermostat?

Also, should thermostats be treated as a "short-life" item and replaced say every four years or so? (I'm using Volvo "Wahler" thermostat).






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New Can a bad thermostat damage your engine? [200][1979]
posted by  sutherml  on Sun Mar 22 12:19 CST 2009 >


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