I had my 2.7 Intrepid engine rebuilt, bored .030 over. Engine has 12K on rebuild and runs great. The problem I'm having is with the oil pressure sensor leaking. After 4K the sensor started leaking. It isn't leaking at the threaded part that goes into the block, it's leaking in the middle of the sensor. I've changed the sensor 3 different times and it takes about 4000 miles before it starts leaking again. I had the mechanic install a new oil pump when he rebuilt the engine. Can anyone explain this one and what's the fix please...Thanks......Jc