What are the symptoms of car code p0128?

With the code P0128 there could be no symptoms at all, or any of the following: – Engine takes too long to warm up in cold weather – Engine temperature drops when driving on the highway – Air conditioner and (or) temperature gauge stops working and (or) after the Check Engine light comes on (GM)

Is the Chevy Trailblazer p0128 Too Cool?

P0128 is not a serious threat to the immediate drivability of your Trailblazer. It should be noted that most modern fuel injected engines to like to run at 200+ degrees. Letting them run too cool can problems after an extended period of time.

Why does my Chevy Trailblazer have a trouble code?

Here are the symptoms associated with this trouble code: Lack of heat – The biggest symptom of the P0128 trouble code in the Chevy Trailblazer 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.

How much does it cost to repair a p0128 Chevy?

If the cooling system is not leaking and the fluid level is OK, replacing the thermostat usually takes care of the problem. The cost to diagnose the P0128 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

What does the p0128 code mean?

P0128 is a diagnostic trouble code (DTC) for “Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)”.

What is check engine code p0128?

Check Engine code P0128. The Check Engine light is on with the code P0128 for the coolant thermostat (coolant temperature below thermostat regulating temperature).

What causes a p0128 code on GM?

P0128 Causes: GMC Envoy. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. 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 is p0128 code on GMC?

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+).