Changed my thermostat, temperature sensor, hoses and radiator cap. Found an external leak on backside of engine, and overflow tank rose up about 1 inch after driving about 30 minutes.
Car is not overheating and drives
great but what could cause this? Had
head gasket checked and they said it
was fine. 2002 eclipse
The leak coming from back side of engine is a heater core hose,or rear freeze plug,is bad.
The rising coolant in the recovery tank is normal. When the coolant is heated it expands. When this happens some coolant is forced into the plastic recovery tank. That's what it's there for. HTH. -Jim
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