Posts Tagged: P0128 Ford Focus

P0128 Ford Focus

P0128 Ford Focus Code P0128 Ford Focus, Check engine light on, A P0128 Ford Focus trouble code is fairly common with the 2.0L engine. The P018 is defined as: P0128 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) The engine computer expects the engine to heat up in a predictable manner based on engine coolant temperature and ambient air temperature sensors, engine RPM, engine run time and accelerator pedal position. If the computer doesn’t see the expected engine temperature, it sets the trouble code. Diagnosing a P0128 Ford Focus trouble … Read More