Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

oil pressure

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Old 04-08-2009, 07:22 PM
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Year: 93
Model: Cherokee
Engine: 4.0
Default oil pressure

my oil pressure is all over the place when im not moving it runs like 60 but movings its between 0 and 40 and jumping around. any ideas? no oil leaks that ive noticed other than leaking oil filter adapter
Old 04-08-2009, 07:31 PM
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Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
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60 PSI is fine for your oil pressure, a little better than good actually so, I'd say your oild pump and pressure is fine. It shouldn't be jumping between 0-40 when the XJ is moving. Sounds like you may have a weak sending unit or gauge.
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