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Sep 21, 2014 | 07:37 AM

#16

Turbo X_J

CF Veteran

Joined: Sep 2009

Posts: 8,567

Likes: 20

From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Quote:

Originally Posted by Bk4organics

Ive been told to do both while you have it pulled. I don't have the skill or hoist so Im having it done at shop. My oil pressure is still good.

These dudes have been waiting almost 5 years for your reply... lol j/k.

You may want to look at the original post date before replying to a thread you searched for.

Sep 21, 2014 | 09:19 AM

#17

CCKen

CF Veteran

Joined: Aug 2010

Posts: 8,357

Likes: 103

From: Canton, MI

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Bk4organics

Ive been told to do both while you have it pulled. I don't have the skill or hoist so Im having it done at shop. My oil pressure is still good.

Edit: Deleted. Same as Turbo X J's post.

Last edited by CCKen; Sep 21, 2014 at 09:22 AM.

Sep 21, 2014 | 09:46 AM

#18

Kalali

Senior Member

Joined: Apr 2012

Posts: 578

Likes: 4

From: Ocean, New Jersey

Year: 2000

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by SeriousOffroad

Low oil pressure is generally a cam bearing issue so don't be too shocked if the new main barings don't solve your problem. The cam is the first component to get oil from the pump, so once those bearings are worn the pressure drops off.

I fully concur. The cam bearings are the ones that get washed out first in 00-01 XJs with the cracked 0331 heads as the coolant trickles down the holes in the lifters from the crack (between # 3 and 4 boss). This also explains the subsequent low oil pressure with no accompanied knocking noise from the bottom end. It's usually difficult to affirmatively prove since most folks do a full rebuild and replace all the bearings when everything is apart.