Oil pressure
#1
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Join Date: Aug 2012
Location: West Chester, PA
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Year: 1996
Model: Cherokee
Engine: 4.0
Oil pressure
My GF's been driving the XJ for the past month since I put a new motor in my Grand Prix GTX. I drive it on the weekends just running around town. I noticed this weekend that the oil pressure gauge gets up to 80 and over as the RPM's get up there. Before this she ran perfectly at 40 and increase a little bit with RPM's but no where near 80. Common problem? Bad oil pump? or something else.....I'm not the best at diagnosing and this is my first XJ with a 4.0 HO so I'd love to get some input from real jeep guys before I get an opinion from one of my techs at the shop.
#2
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Join Date: Sep 2011
Location: Riviera, Texas
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
My GF's been driving the XJ for the past month since I put a new motor in my Grand Prix GTX. I drive it on the weekends just running around town. I noticed this weekend that the oil pressure gauge gets up to 80 and over as the RPM's get up there. Before this she ran perfectly at 40 and increase a little bit with RPM's but no where near 80. Common problem? Bad oil pump? or something else.....I'm not the best at diagnosing and this is my first XJ with a 4.0 HO so I'd love to get some input from real jeep guys before I get an opinion from one of my techs at the shop.
#3
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Year: 1996
Model: Cherokee
Engine: 4.0
ahhh sounds about right. My buddy snapped his off on his '99 sport last time he changed his oil and now his needle is all over the place. I know mine is all covered in mud, the previous owner never cleaned off any mud. I'll just replace it and start there.
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