I just had my water pumb replaced on Thursday, now on Saturday I notice my oil gage is not working, what happened? Could it have any thing to do with the water pumb, it should not have? Could they done somthing while changing the water pumb, they were checking to see if it was really the water pumb or something else causing the water pumb to leak. They replaced my air conditioner hose.

they might have left a connector unplugged in this case the oil pressure sending unit. I dont know if its in the area of needing to be removed for this job ive never done one.

someone bumped the wire off the oil pump sensor/sender~

does the coolant loop hold pressure?

think this one's on the side of the block, in the oil circuit, up from the regulated pump~

Is it Saturday? out in California, the sun is just setting and the Giants vs the Dodgers game is starting, on the eastest coast still isn't midnight, so you're either pullin' our legs or this is last week's affair~

Maybe he's overseas where it is Saturday already.