P0128 CHEVROLET

Question

HI. My cars: Chevrolet traiblazer LTZ 4.2  4x4 2008y. temperature sensor Swapping.
Water temperature sensor is fixed. After some time still lit, then extinguished. Check again the next day and lit the water fall down arrow indicator.
cockpit panel water indicator does not show

Answer 1

Hi there

First, check the level, if it's low on coolant you might not get a reading. If the coolant level is good, recheck the wiring from the coolant temp sensor to the computer. If that is ingood shape, then the next step is the instrument cluster. You may have a problem with the actual cluster itself causing the problem.