overheating

Asked by doubleut508 Sep 30, 2016 at 09:47 AM about the 2002 Chevrolet Cavalier Sedan FWD

Question type: Maintenance & Repair

in my 02 cavalier it will overheat and skyrocket to the red but 10 seconds later it goes back to the middle what cause this to happen?

1 Answer
101,595

KenF answered 7 years ago

Thermostat not opening when it should. Replace it and add new coolant. May want to give the cooling system the once over as well - check radiator for good flow, flush block and heater core, new thermostat, new coolant and bleed for air. If problem persists, replace engine coolant temp sensor.

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