What does trouble code p0128 mean on Chevy Colorado?

Here are the symptoms associated with this trouble code: Lack of heat – The biggest symptom of the P0128 trouble code in the Chevy Colorado is going to be lack of heat. When the thermostat doesn’t bring the engine all of the way up to the proper operating temp, it means that the water going through the heater core isn’t as hot.

What causes the p0128 code on the thermostat?

Code P0128 is most likely caused by one of the following: 1 (1) Improper coolant level/mixture 2 (2) Faulty cooling fan 3 (3) Faulty coolant temperature sensor (ECT) 4 (4) Stuck open thermostat

What causes the p0128 code on a Chrysler 300?

Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. When a thermostat is stuck open, it allows coolant to flow through the engine at all times.

What does the code p0128 on the ECM mean?

What Does Code P0128 Mean? The engine control module (ECM) tracks how long it takes for the engine of a vehicle to reach and maintain the correct operating temperature.

What does it mean when your thermostat says p0128?

Also referred as “Thermostat Below Regulating Threshold”, Error Code P0128 means the PCM (Powertrain Control Module) of the vehicle has detected a problem on the thermostat, as it failed to reach the required temperature level within the specified time after starting the engine.

What does the PCM error code p0128 mean?

When Error Code P0128 appears in the PCM, the engine is doing either of the two things: the engine takes too much time to warm up to its require operating temperature (takes more than 15 minutes) as measured by the Coolant Temperature sensor, or the operating temperature is below 160° – 170° F range throughout the operation of the vehicle.