Been looking at forums all morning trying to pinpoint what the exact issue is. Symptom is the pressure gauge jumping back and forth erotically and when come to a stop (once vehicle is warmed up) it will show low oil pressure in the DIC and gauge. As soon as I accelerate it goes away. Last year I replaced the oil pressure sending unit in the block and appeared to solve the problem, except it would come on when stopped once in a while. Did some research which showed it’s the stepper motor so I continued to run it this year after working all summer. Ran it 10,000km this year with no issues until this morning when going to take for an oil change. Washed the truck at the car wash and sprayed under the hood. Stated the truck up and the light was on all the way to get an oil change.
I stopped at CT and bought a can of sea foam and put it in the oil tank to maybe clear up any blockage, seemed to maybe help, but tough to tell. Changed oil and still going off as I parked in garage. The gauge jumps around at idle or even steady throttle, which makes me believe it is a bad ground on the unit. Any idea where to look for this bad ground?
I stopped at CT and bought a can of sea foam and put it in the oil tank to maybe clear up any blockage, seemed to maybe help, but tough to tell. Changed oil and still going off as I parked in garage. The gauge jumps around at idle or even steady throttle, which makes me believe it is a bad ground on the unit. Any idea where to look for this bad ground?
