Posts Tagged: P0128 Ford Focus

Learn the Common Causes of P0128 Code on a Ford Focus

How to Troubleshoot and Fix a P0128 Code on a Ford Focus A P0128 code on a Ford Focus is fairly common with the 2.0L engine. It’s defined as 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 code … Read More