My Malibu starting overheating, it does it sort of weird, it stays at the half way mark (safe) for about 20 miles, and then all of a sudden it will shoot up to the red zone. The first time was when I was was driving at about 55 MHP it made a sudden surge and then overheated. SO far I have tried changing the sensor, changing the thermostat, I changed the radiator cap. It still overheats.
New parts = water pump, thermostat, temp sensor, had it pressure tested. It is still over heating.
The water is pumping. So what could it be?
I am a female disabled US Navy veteran, on a fixed income I need to keep this car running.
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Friday, July 17th, 2009 AT 8:56 PM