Have intermittent oil pressure gauge/DIC warning problem on 2000 Bonneville ssei. Have diagnosed it to the sending unit (above oil filter housing - see pic). It'* hard to tell but it looks like the plastic harness is cracked (Or there is a similiar black piece on the sending unit?). It definitely bends a little with only a little oil noticed. It'* not leaking at the oil filter body threads.) If I get under the car and wiggle the wiring the gauge goes back up to 40-80 or so.
Anyways, could it be the harness or is it more likely the sending unit (I didn't take it off incase it is the harness.....and I couldn't get it back on)? Anyways, any idea what the sending unit or a new harness piece would cost? Is it common for the sending unit to leak at that end? I'm guessing it is the sending unit. Our car always pegged 120 at idle, running etc, What should the gauge read approx. under normal conditions. The manual only says above the red zone is normal.......geez those GM engineers were helpfulin writing that manual..........
Geez these cars are wierd.............thanks in advance (again!).
Looking back it is amazing how little I said in such along post...............oh yeah, how do I post a pic?