I purchased a 94 YJ with a 4.0L and Automatic trans alittle over a month ago. I have watched the oil pressure gauge since I purchased this and the idle pressure is usually right at 30psi and at normal driving conditions I am usually at 60 psi.

Within the last week or so, I have seen that the pressure at idle ranges from 30-40psi and sometimes does not come down from the 60psi...along with normal driving conditions only going up to 50psi.

Has anyone had a similar issue or know/think of what this might be?

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94 YJ...99% stock right now...So far, it is RhinoLined.

"Some people are like Slinkies...they're really good for nothing. But they still bring a smile to your face when you push them down a flight of stairs."

Replace the sending unit. Sometimes they get gunked up w/ a new oil cleaning up the nastys and cause fluctuations....or they just go bad. At least is sounds like it is making good pressure.

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99 TJ
71 C101
04 KJ
03 SFA KJ Sport
LOST JEEPS So-Cal

x2..
very easy and inexpensive fix..

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'08 Liberty stock 4x4
'89 yj S.B.C., 700r4, np231, 8.8 rear end w/ yukon 4:10 gears. to many add ons to list