99 Chevrolet Lumina overheating the thermostat was replace and the cooling system was drain and flush

Asked by Oct 31, 2016 at 03:22 PM about the 1999 Chevrolet Lumina 4 Dr LS Sedan

Question type: Maintenance & Repair

Car still overheating

1 Answer

79,645

There are lots of components to the cooling system - the radiator, hoses, cooling fans and the relays and switches that make them work, water pump, thermostat, water temp sensors and the heater core. Any one thing could make the car over heat as could a bad heat gasket or a dirty cooling system. I would flush the engine if you have not and check to see if the radiator is plugged up and if the cooling fans are coming on.

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