Of Starters and Oil Filter Adapters
Thread Starter
Seasoned Member
Joined: Nov 2014
Posts: 342
Likes: 34
Year: 1998
Model: Cherokee
Engine: I6 4.0L
So after a week of wheeling in Colorado, I got home and my starter is acting cranky. Pun intended. Battery is good.
The oil filter adapter has been leaking for quite some time, and I suspect things finally caught up with the starter. My question is this: if I replace the solenoid and give the armature, brushes, and commutator a good cleaning...is that not a total overhaul? What else could go wrong with a starter? Should I just get a brand new unit?
Currently don't have anything setup to do a bench test.
The oil filter adapter has been leaking for quite some time, and I suspect things finally caught up with the starter. My question is this: if I replace the solenoid and give the armature, brushes, and commutator a good cleaning...is that not a total overhaul? What else could go wrong with a starter? Should I just get a brand new unit?
Currently don't have anything setup to do a bench test.
Senior Member
Joined: Sep 2014
Posts: 739
Likes: 6
Year: 2012
Model: Grand Cherokee (WK)
Engine: 3.6 V6
I would look at replacing the adapter O-rings too, doesn't make sense to salvage the starter and then spew more oil on it. Most autozones will bench test the starter for free as well.
Senior Member
Joined: Sep 2014
Posts: 739
Likes: 6
Year: 2012
Model: Grand Cherokee (WK)
Engine: 3.6 V6
I just did mine about two to three weeks ago. There are three O-rings in there that need to be replaced, if you have the tools it is an easy fix. I got a buddy who has a '94 and mine is a '95 and we did them both in about three hours.
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 103
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
Go to your Chrysler dealer and get a Oil Filter Adaptor Seal Package, part number 4720363. Cheap.
Make sure you lube the O-rings with motor oil when assembling the to the bolt.
Make sure you lube the O-rings with motor oil when assembling the to the bolt.
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CF Veteran

Joined: Apr 2012
Posts: 1,843
Likes: 2
From: Ross Vegas, Ga
Year: 2000
Model: Cherokee
Engine: 4.0 w/ tupy head
Advance auto sell torx bit set that looks like allen keys for 10 $ and it has the t60 in it and you can get a peice of pipe over it easy for leverage.stick with mopar o rings or it will leak again good luck
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
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



