I have a CEL illuminated with the code P0128 (Coolant thermostat malfunction). I have checked the coolant levels (hot and cool) and every single fuse in the car. The engine temperature gauge needle will raise almost halfway to "H" during highway driving, and stays just above the "C" when city driving. Is there a smart way to determine and fix what is actually wrong? Or do I just go right for a new thermostat?
How will driving the car with this condition present affect the car? EX: What is going to break/wear out?
Thank You Merry Christmas!
How will driving the car with this condition present affect the car? EX: What is going to break/wear out?
Thank You Merry Christmas!