Why is my GMC Envoy p0128 not working?

Lack of heat – The biggest symptom of the P0128 trouble code in the GMC Envoy 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 is the OBDII code for GMC Envoy?

What does the code p0128 mean on a Buick?

If the Powertrain Control Module (PCM) detects the calibrated amount of air flow and engine run time have been met, and the Engine Coolant Temperature (ECT) has not met the minimum thermostat regulating temperature, the code P0128 will set. An Engine Coolant Temperature ( ECT) sensor monitors the temperature of the coolant.

What is the coolant thermostat code on a GMC Envoy?

GMC Envoy P0128: Coolant Thermostat – Below Temp. P0128 is a relatively common OBDII trouble code. It is triggered when your GMC Envoy‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+).

What does the code p0128 mean on a GMC Envoy?

P0128 is a relatively common OBDII trouble code. It is triggered when your GMC Envoy ‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+). Envoy P0128 Symptoms

What does the p0128 code on a hemi mean?

This means that the engine’s powertrain control module (PCM) has detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. Often, the intent of the P0128 code is to indicate a faulty thermostat (likely stuck in the open condition).

Navigation