#2016 JEEP CHEROKEE COOLANT THERMOSTAT DRIVER#

When the ECM detects that the engine’s coolant is not reaching its proper operating temperature within a set timeframe, it will trigger this P0128 trouble code to alert the driver of a potential issue. Below Thermostat Regulating TempĪs part of your Grand Cherokee’s computer system, your Engine Control Module (ECM) tracks various engine conditions, such as air temperature, engine speed and load, coolant temperature, etc. P0128 indicates an issue with the engine’s coolant temperature not reaching the proper operating temperature within a certain amount of time. The coolant temp sensor is responsible for telling the Engine Control Module (ECM) the engine’s coolant temperature. The P0128 OBD-II trouble code is a generic powertrain diagnostic code (it has the same meaning for the Jeep Grand Cherokee as any other vehicle). P0128 Definition: Coolant Temp – Below Thermostat Regulating Temp Thermostat stuck open, Engine Coolant Temp Sensor (ECT) issues Lack of heat, MIL (check engine light), MPG Loss (1 or 2 tops)

P0128: Coolant Temperature – Below Thermostat Regulating Temp P0128 is most often caused by a thermostat that is stuck open. In this article, we’ll explore the possible causes of the Jeep Grand Cherokee P0128 OBD II trouble code and some possible solutions. It’s essential to address this issue immediately, as vehicles with this issue have increased emissions and decreased fuel efficiency. This code can appear as soon as you start your vehicle, or it can also occur while driving. The P0128 OBD II trouble code indicates that your Jeep Grand Cherokee’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the vehicle.

2016 jeep cherokee coolant thermostat