P0128 BUICK Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 BUICK Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 CHEVROLET Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 CHEVROLET Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 CADILLAC Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 CADILLAC Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 GMC Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 GMC Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 PONTIAC Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 PONTIAC Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 SATURN Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 SATURN Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 SATURN Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 SATURN Engine Coolant Temperature Below Thermostat Regulating Temperature

P0128 ISUZU Engine Coolant Temperature Below Thermostat Regulating Temperature

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 Tech notes

Read More P0128 ISUZU Engine Coolant Temperature Below Thermostat Regulating Temperature