I had my mechanic look at the car because the thermostat would start to read hot when the car would idle. When I purchased the car, the dealer had to change the thermal sensor and a broken wire. However, the engine reading hot was a new development. My mechanic said the radiator was short 1/2 gallon of coolant. He pressure tested the system for 25 minutes and there was no loss in pressure. Asked if he did a head gasket test, he said no because if there was a problem the cylinder would have filled with coolant. He also changed the oil and did not find any signs of coolant in the oil. Where could the coolant have gone? This also leaves me to believe I will have the EGR valve replaced. Thank you in advance for your time.
Wednesday, July 18th, 2007 AT 8:40 PM