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P0128 Diagnostic Trouble Code Discussion for April 2005

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2001 Chevrolet Malibu LS 3.1L MIL Lamp on VIN: 1G1NE52J01
P0128: Engine Coolant Temperature Below Thermostat Regulating Temperature. Have done a lot of checking on this vehilce and ther related wiring ohms out and checks out as per tests. According to mitchell an abnormal temp increase from the engine. Also the cooling fans will come on without warning engine running and run constantly hot ...
April 12, 2005