What does trouble code p0128 mean on a car?

What Is Trouble Code P0128? This generic trouble code can affect most makes and models of vehicles. The code is signaled when your powertrain control module detects an unusual temperature reading while your engine is running. Typically, it’s signaled when your thermostat isn’t reading any temperature or is reading an incorrect temperature.

What should I do about my p0128 coolant thermostat?

Past experience indicates that the most likely solution for a P0128 is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code: Verify coolant strength & level. Verify proper cooling fan operation (check if it’s running more than it should).

What does trouble code p0125 stand for?

The exact location of the thermostat and issues related to a damaged thermostat may vary depending on your vehicle. For most vehicles, trouble code P0125 is related to this issue as well. Your thermostat is an essential component for regulating coolant temperature and checking for more serious issues with your engine.

What to do if your ECM says p0128?

If Nissan vehicle, check for Technical Service Bulletins (TSBs), as the ECM may need to be reprogrammed to correct the P0128 code Regardless of what vehicle year, make and model, it is advisable to check for TSBs because if there is a known fix set out by the automaker, it can save you time and money in the diagnosis and repair.

What does p0128 mean on a Dodge thermostat?

Since this often indicates a problem with the thermostat, regardless if you are driving a Dodge, a Ford, or a Jeep, the P0128 code is likely to appear once your coolant thermostat or temperature sensor fails. Of course, as was mentioned earlier, there are other potential causes for the code, as well.

How much does it cost to repair a p0128 Toyota?

The cost to diagnose the P0128 TOYOTA 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. Most auto repair shops charge between $75 and $150 per hour.

What to do if your coolant temperature is below p0128?

P0128 should be fixed as soon as possible. You’ll have to look at all possible causes to diagnose the problem properly. Have a professional mechanic check your vehicle if you don’t have the required DIY auto repair experience and skills.

What could cause the code p0128?

A stuck thermostat is the most common cause of a P0128 code. When the engine warms up, wax inside the thermostat expands pushing down on spring loaded valve. This causes the valve to open; flow to the bypass port is blocked and flow to the radiator is enabled.

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+).

Can a p0128 coolant thermostat cause a burn?

When the engine is warm, the cooling system is pressurized and very hot and can cause burns or other personal injuries if you are not careful. Past experience indicates that the most likely solution for a P0128 is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:

What does the code p0118 mean on the ECM?

This data is sent to the ECM, which uses this data to regulate the air to fuel ratio, cooling fans, and ignition spark timing needed by the engine. Code P0118 is the result of the ECT sensor indicating a high voltage input from the coolant temperature circuit. (typically over 4.7V)

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).