lower crank/ rod bearing help
CF Veteran
Joined: Jul 2012
Posts: 1,395
Likes: 1
From: SD
Year: 1998
Model: Cherokee
Engine: 4.0
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Thread Starter
Senior Member
Joined: Jan 2012
Posts: 1,001
Likes: 0
From: Memphis tenn
Year: 88
Model: Cherokee
Engine: i6 4.0
Originally Posted by belvedere
Oooo oooo, let me take a crack at it!
opsu= oil pressure sending unit
hop=hope
frame=Fram
How did I do? What do I win?
Senior Member
Joined: Jan 2012
Posts: 952
Likes: 4
Year: 2004
Model: Grand Cherokee
Engine: 2000 4.0
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Has low oil pressure been verified with a mechanical gauge?
Sure the flexplate bolts aren't just loose and you've got a faulty oil sender telling you the pressure is low?
If the pressure is truly that low, as stated, your cam bearings are mostlikely wiped out. Time for a rebuild.
And rrich, the part number is OICU812,
Sure the flexplate bolts aren't just loose and you've got a faulty oil sender telling you the pressure is low?
If the pressure is truly that low, as stated, your cam bearings are mostlikely wiped out. Time for a rebuild.
And rrich, the part number is OICU812,
Thread Starter
Senior Member
Joined: Jan 2012
Posts: 1,001
Likes: 0
From: Memphis tenn
Year: 88
Model: Cherokee
Engine: i6 4.0
Originally Posted by belvedere
Take it apart, see what's worn/needs to be replaced, and have the crank inspected by a machine shop.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0