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P0128 Diagnostic Trouble Code Discussion for November 2018

Thermostat System Malfunction


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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2007 Mercury Milan Premier 2.3L MIL Lamp on VIN: 3MEHM08Z27
P0128: coolant thermostat staying open. ... times now for same code ,p0128, I have replaced t-stat twice,once aftermarket ,once wit ford oe and coolant temp sensor ,ford oe.any help on this would be greatly appreciated..
November 01, 2018