Indicates that the Thermostat Monitor has not achieved the required engine operating temperature level within a specified amount of time after starting the engine.
How do I fix code P0128?
What repairs can fix the P0128 code?
- Replacing the thermostat (most common repair)
- Replacing the coolant temperature sensor, or the wiring and connector associated with the sensor being damaged.
Is it OK to drive with P0128?
Can I drive my vehicle with a P0128 trouble code and illuminated CEL? You may drive your vehicle with a P0128 trouble code. You will not notice any issue except for maybe the temperature gauge never reaching normal levels, and possibly the Check Engine light being illuminated.
How serious is a P0128 code?
Error code P0128 is not serious enough to require immediate repair or prevent you from driving your vehicle. However, as it can greatly impact fuel economy and emissions, the issue should be addressed in a timely manner. Prolonged coolant temperature problems can also lead to serious engine damage.
How much does it cost to fix code P0128?
How much will it cost to fix? Running a diagnostic for a P0128 will cost around one hour of labor, which may run you between $75 and $150. If you need to replace the thermostat, the total cost for parts and labor will be around $470 to $505.
What causes P0128?
The most common cause for P0128 is the engine coolant thermostat is stuck open. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose.
Can low coolant cause P0128?
Low engine coolant can alter the engine running temperature enough to signal trouble code P0128. Your intake air temperature sensor, coolant temperature sensor and coolant fan could also signal this trouble code, so these should be inspected after you look over your thermostat and coolant level.
How long can I drive with a P0128 code?
Yes, driving with a P0128 code is safe if your car doesn’t have any other internal problems. But you should not go more than 1600 kilometers. Replace the damaged parts before exceeding 1600 kilometers.