high oil pressure
Thread Starter
Junior Member
Joined: Mar 2011
Posts: 80
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From: Green Bay, WI
Year: 1998
Model: Cherokee
Engine: 4.0
just the other day i was driving to work and noticed that my oil pressure was at 50 instead of the normal 40 and even when i stopped and the engine was just at idle the pressure didnt drop at all which it usually drops down to 20 at idle then the next day it was fine again now back at 50 today. any thoughts?
Member
Joined: Feb 2014
Posts: 172
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From: north of the Rio Grande, south of the Red, east of the Pecos, west of the Sabine
Year: 1990
Model: Comanche
Engine: 4.0
Pull the wire off the sending unit by the distributor, clean, and reattach. Any resistance in the wire or connection will cause a higher reading on the gauge.
Thread Starter
Junior Member
Joined: Mar 2011
Posts: 80
Likes: 0
From: Green Bay, WI
Year: 1998
Model: Cherokee
Engine: 4.0
ya had an oil change about 500 miles ago and its a service pro filter by boss said there are 2 dif filters in the book maybe i take this filter off n try the other
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
My bet is that the oil pressure sending unit is on it's way out the door....
If you do end up replacing it, I'd recommend buying a Mopar unit from Jeep for best accuracy/reliability/mating with your factory gauge.
Good luck and keep us posted!
If you do end up replacing it, I'd recommend buying a Mopar unit from Jeep for best accuracy/reliability/mating with your factory gauge.
Good luck and keep us posted!
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