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Old 02-21-2012, 12:36 PM   #1
Dirt Nut's Avatar
Join Date: Feb 2012
Location: Columbus, Ohio
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Exclamation Oil Pressure concerns

my oil pressure starts out in the normal range then after engine is warmed up it fluctuate at 38-45 psi. also i remember when i changed 1000 miles ago, my oil it was unusually high , at the 60 plus psi range and at idle 40. could it be the oil pressure switch? it seems like the reading bounces at different speeds and gears

I have been using the Castrol GTX High mileage 10w 30 synthetic bend for the past year and havent had these issues before

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Old 02-21-2012, 12:53 PM   #2
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Sounds normal to me.

CU Boulder Aerospace Engineering
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Old 02-21-2012, 01:16 PM   #3
Join Date: Feb 2012
Location: SW Georgia
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My experience with the oil pressure switches when they fail is that the intermittently go to -0- while driving and back to normal after you re-start the engine, but was accurate between times.
As with many parts on your Jeep, if it's not bad right now, you can be sure it one day will be. If it concerns you, for peace of mind replace it, and keep the old one in the console as a spare.
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Old 02-28-2012, 12:36 PM   #4
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notice while driving on the highway, the pressure gauge dropped to 30 for awhile and then went back up to 42-45
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