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Oil pressure

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Old Sep 18, 2015 | 09:31 PM
  #1  
Theodore Chaney's Avatar
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Model: Cherokee
Default Oil pressure

What's a Jeep Grand Cherokee 318 v8 5.2 liters oil pressure supposed to be at hot idle?
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Old Sep 19, 2015 | 07:07 PM
  #2  
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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The rule of thumb is 10 psi for every thousand RPM as a minimum spec, but twenty psi seems to be the normal hot oil at idle reading.
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Old Sep 20, 2015 | 09:28 PM
  #3  
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From: Minnesota
Year: 1999
Model: Cherokee
Engine: 4.0L
Default Oil pressure

X2. Mine runs around 45psi at 60mph
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Old Sep 1, 2018 | 09:20 PM
  #4  
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From: Idaho
Year: 1989
Model: Cherokee (XJ)
Engine: 4.0
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I just replaced my original oil pressure sending unit with a standard brand. Went to turn on the car for the past 2 days the light has been on. Checked the oil pressure with a tester read 60 was told I have a faulty part. Anyone have any ideas?
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Old Sep 5, 2018 | 01:41 AM
  #5  
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From: syracuse ny
Year: 1997 230,000 miles
Model: Grand Cherokee (ZJ)
Engine: 4.0, new lifters valve job with new springs and exhaust valves, preload set with shims
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Unsure what the question is. Could be a bad part.
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Old Sep 5, 2018 | 11:59 AM
  #6  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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BUY MOPAR!! Then you'll never be in doubt.
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