![]() Allow the engine to warm up so that the water thermostat opens. Start the engine and check all hoses and connections for leaks. Replace the thermostat and seal into the housing.Ĭonnect the connector to the camshaft position sensor. Inspect the seal and the water thermostat. Remove the water thermostat and seal from the water thermostat housing. Remove the bolts and move to one side the water hose connection. If this contamination occurs the service change interval on Extended Life Coolant will be reduced from 6 years/150,000 miles to 3 years/30,000 miles.ĭrain the engine coolant to a point below the water thermostat.ĭisconnect the connector from the camshaft position sensor. If mixing occurs, drain engine cooling system and refill with originally equipped coolant type. These are the steps to replace the thermostat but are applicable to remove and replace the housing also.ĭo not mix Standard (green) Coolant with Extended Life Coolant (orange). Hope helps (remember to rate and comment this). * If Nissan vehicle, check for Technical Service Bulletins (TSBs), as the ECM may need to be reprogrammed to correct the P0128 code * If the above items check out good, replace the thermostat * Verify proper intake air temperature (IAT) sensor operation, replace if necessary. * Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary. * Verify proper cooling fan operation (check if it's running more than it should). However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code: Possible Solutions: Past experience indicates that the most likely solution is to replace the thermostat. * Faulty intake air temperature (IAT) sensor * Faulty coolant temperature (ECT) sensor ![]() Symptoms: You will likely not notice any drivability problems other than the MIL illumination.Ĭauses: A code P0128 may mean that one or more of the following has happened: In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle. The intent of the P0128 code is to indicate a faulty thermostat. This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |