P0128 code?
#3
Senior Member
True Car Nut
That says the car is detecting low coolant temperature. Could be a problem with the coolant temperature, or the sensors that detect the temperature. Possible causes are a defective thermostat (stuck open), low coolant level, defective engine coolant temperature sensor or a defective intake air temperature sensor. All easy to check and repair if required.
Read the write up: https://www.gmforum.com/obd-ii-trouble-shooting-153/p0128-284065/
Read the write up: https://www.gmforum.com/obd-ii-trouble-shooting-153/p0128-284065/
Thread
Thread Starter
Forum
Replies
Last Post