Originally Posted by jrw1234
I would second SSEI ECHO'* opinion first by checking your oil pressure with a manuel guage. Its most likely just the sending unit itself. The oil sending unit should be just back behind the oil filter on the top side of the elbow on which the oil filter screws on to. I found the easiest way to remove it is by using a pair of vice grips. If you oil pressure guage is bouncing all over the place then it sounds like the sending unit.
I had to use a pair of channel locks my self, however there are special sockets available for that specific purpose..probably decently priced as well.
Don't buy a cheap sending unit if that is so the problem. trust me, i did for my old bonny, it was dead in 6 months, the gage took atleast a minute to start reading pressure..even though the pressure was there for sure.
I would recommed Delco for sure in that case of it being the sender.