I just had an engine rebuilt done on my 4.0 1995 and my oil pressure is pegging out at 80 plus.. When I took it in for the rebuild it was a steady 40 consistent and the oil was not the issue when I took it in for the rebuild any suggestions
Rebuild
- Thread starter AJEEPGURL
- Start date
I would double check the connection on the sending unit and the connector itself if you haven't already. It screws in right above the oil filter. There is also a test you can do to see if the sending unit is bad attached below.
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Questionable happening directly after it was in the shop. Is it 80 as soon as started and stays there or does it actually drop a bit with low RPM and a warmed up engine? Was the sender replaced or is its possibly not connected or poorly connected? ( slip on type connector) Sounds like my 91's gauge which Im told is probably the gauge or a cluster ground issue. It has read correctly every now and again, but typically is pegged at 80.