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1992 Jeep Cherokee oil pressure

Tiny
SUNNY06
  • MEMBER
  • 1992 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 122,000 MILES
Just bought with 35k on rebuilt
oil pressure fine on start up (40), then drops to 20 when warm
when driving for long periods of time will go to or near 0, unless I rev it, then it goes up to 20

bad sender? Bad oil pump? Too thin of oil (10w30 royal purple)? Worn bearings?
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Thursday, March 18th, 2010 AT 1:36 PM

1 Reply

Tiny
TOOOMANYTOYS
  • MECHANIC
  • 513 POSTS
I would hook a manual pressure gauge to the engine to see acurate oil pressure. If the oil pressure is still low you may want to pull the oil pan check the bearings if ok try a high volume oil pump.
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Thursday, March 18th, 2010 AT 1:46 PM

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