p0128

Asked by Jan 17, 2017 at 04:27 PM about the 2005 Chevrolet Malibu LS

Question type: Maintenance & Repair

engine light comes on even though i have changed thermostat and engine temp
senser

1 Answer

76,235

Possible causes - Leaking or stuck open thermostat Low engine coolant level Insufficient warm up time Faulty engine coolant temperature sensor Engine coolant temperature sensor harness is open or shorted Engine coolant temperature sensor circuit poor electrical connection. Probably the coolant temperature sensor.

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