problem: Low oil preasure..

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Jan 18, 2013 | 01:50 PM

El Mamito USMC

Thread Starter

Junior Member

Joined: Sep 2012

Posts: 63

Likes: 0

From: anywhere Marines are needed(currently NM)

Year: 1999

Model: Cherokee

Engine: 4.0

problem: Low oil preasure..

ok guys from time to time the oil gauge goes so low that the "check gauges" ligth comes on.. but as soon as i hit gas the preasure goes back up...

any idea guys?

Jan 18, 2013 | 01:56 PM

Xj88

Old School CF Moderator

Joined: May 2010

Posts: 9,652

Likes: 3

From: Chattanooga

Year: 2001

Model: Cherokee

Engine: 4.0

verified it with a mechanical gauge?

Jan 18, 2013 | 02:07 PM

bigbadon

Senior Member

Joined: Jan 2012

Posts: 952

Likes: 4

Year: 2004

Model: Grand Cherokee

Engine: 2000 4.0

welcome to the club...drive it! As long as it comes up when you come above idle I would not be too concerned. Mine has had same symptoms for a long time (verified with mechanical gauge at 4psi at 650 rpm). Change filter and verify actual pressure...if low there is not much you can do anyway unless rebuild. If it ain't knocking just keep rocking!!

Jan 18, 2013 | 03:40 PM

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 El Mamito USMC

ok guys from time to time the oil gauge goes so low that the "check gauges" ligth comes on.. but as soon as i hit gas the preasure goes back up...

any idea guys?

Bet that's no plessure.

Jan 18, 2013 | 05:10 PM

salad

Herp Derp Jerp

Joined: Nov 2011

Posts: 18,251

Likes: 17

From: Parham, ON

Year: 1999

Model: Cherokee

Engine: 4.0L OBD-II

Quote:

Originally Posted by bigbadon

Change filter and verify actual pressure...if low there is not much you can do anyway unless rebuild. If it ain't knocking just keep rocking!!

^^ Good advice. The minimum spec is 13 PSI. Change filter and verify with a mechanical gauge. If you're using anything like the FRAM Orange Can Of Death get that off of there... same goes for any similar re-branded filter that typically sells around the $3 mark (quick-lube type places and low-end store brand). The oil pressure sender is a common failure.

Quote:

Originally Posted by CCKen

Bet that's no plessure.

lol

Jan 18, 2013 | 09:32 PM

El Mamito USMC

Thread Starter

Junior Member

Joined: Sep 2012

Posts: 63

Likes: 0

From: anywhere Marines are needed(currently NM)

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by bigbadon

thanks...

Quote:

Originally Posted by salad

i use napa GOLD only...

thanks guys, i guess its something normal for them..

Jan 19, 2013 | 08:23 AM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Here's something interesting. If you shine a light into the oil filler hole, is it sludgy in there?
http://www.jeepforum.com/forum/f19/4...fixed-1304679/