Thermostat sticks until I burp it. Hear bubbles in lines n motor. Added water behind then replaced thermostat. Could that be the cause why it won't bleed?
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2002 Mercury Cougar Question: changed radiator n thermostat. Now problems bleeding air.Thermostat sticks shut
Answer #1ziptie12 May 10, 2014, 19:12Master
How bad did it overheat before the radiator and t-stat were replaced?
Replycheriwalker51, May 10, 2014, 22:08Rookie
It got hot but has no symptoms of a bad head other than air bubbles and a thermostat that sticks every 300 miles.
Other than that it runs good. Doesnt get hot till thermostat sticks.
Replyziptie12, May 11, 2014, 19:23Master
Thermostat 'sticking' because of air pocket. t-stat won't open until hot liquid hits it steam/hot air won't do it. Have it tested for a blown head gasket. Kits to test for combustion gases coming through cooling system are available at parts stores.