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Junior Member
Joined: Jun 2011
Posts: 99
Likes: 0
From: Cary, NC
Year: 2001
Model: Cherokee
Engine: str 6
I leak oil, this one may be for you... haha:P So I got oil dripping from my where my inspection plate is. it's not extremly bad, but when I've got alot of speed the drips fly back onto the exhaust and burn up making my jeep smoke. not sure where the leak is, but it falls off my jeep at the inspection plate.
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by 01cherokeelimited
I leak oil, this one may be for you... haha:P So I got oil dripping from my where my inspection plate is. it's not extremly bad, but when I've got alot of speed the drips fly back onto the exhaust and burn up making my jeep smoke. not sure where the leak is, but it falls off my jeep at the inspection plate.
And i got no oil leaks dispite my name lol
Senior Member
Joined: Aug 2012
Posts: 583
Likes: 0
From: Clear Lake, TX
Year: 1999 Jeep Cherokee
Model: Cherokee
Engine: 4.0
It could be your oil filter adapter also. I did this mod in about 10 minutes and no more leaking from the adapter. I bought a torx bit from Advanced Auto parts and cut the top way down and used a ratcheting wrench on the bit. That way I had plenty of clearance to get the adapter off.
http://www.jeepforum.com/forum/f11/c...rokee-1162291/
Similar to this pic.
http://www.jeepforum.com/forum/f11/c...rokee-1162291/
Similar to this pic.
Newbie
Joined: Sep 2012
Posts: 17
Likes: 0
From: Wilmington, DE
Year: 1995
Model: Cherokee
Engine: 4.0
Ok because the np231 to go Into 4hi you only need to take your foot off gas peddle and pull lever I to 4hi and your in 4wd. As you go further you enter N and then 4LO. To engage and disengage 4LO you must put you tranny I to N hence the grinding. Try hitting all those things I just told you. If they all work perfect you good. Sometimes the shift linkage loosens and you can slip outta 4wd and some other stuff but try a complete thing first
ok, its getting kinda cold now as we go into the fall, and the heat comes out of every other vent, but the floor, and the defroster vent on my 97 cherokee. I know there is a flap that opens to let the heat threw, and i know that it is not opening, so can anyone possibly tell me where the vacuum pod is that controls this defroster vent?? Im also thinking i may be able to access a pod, or lose hose behind the radio, but still am not sure. Thanks everyone!!
CF Veteran

Joined: Apr 2011
Posts: 3,493
Likes: 0
From: Chickamauga Ga.
Year: 2000
Model: Cherokee
Engine: 4.0
Originally Posted by Alex97XJ
ok, its getting kinda cold now as we go into the fall, and the heat comes out of every other vent, but the floor, and the defroster vent on my 97 cherokee. I know there is a flap that opens to let the heat threw, and i know that it is not opening, so can anyone possibly tell me where the vacuum pod is that controls this defroster vent?? Im also thinking i may be able to access a pod, or lose hose behind the radio, but still am not sure. Thanks everyone!!
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by Billy Madison
Thanks for the reply I'll try that next time. But what you're saying is to switch to 2wd I gotta put it in neutral switch to 2 then back in drive. I'm gonna say my shift linkage might be loose because sometimes I can stay locked in 4wd and it's fine. Other times it wont engage after its been switched
Here's a misc question. I have a 2.8l 1985 cherokee. One of the exhaust manifold bolts has fallen out which i hear is a common issue with these motors. Anyways, anyone have any idea what size the bolt is? the old one fell out rather than break off, so should be an easy replace job.
Newbie
Joined: Sep 2012
Posts: 17
Likes: 0
From: Wilmington, DE
Year: 1995
Model: Cherokee
Engine: 4.0
n
4h
Which i always found interesting lol
CF Veteran
Joined: Mar 2011
Posts: 1,423
Likes: 0
From: Owensville, MO
Year: 1998
Model: Grand Cherokee
Engine: 5.9
Here's a misc question. I have a 2.8l 1985 cherokee. One of the exhaust manifold bolts has fallen out which i hear is a common issue with these motors. Anyways, anyone have any idea what size the bolt is? the old one fell out rather than break off, so should be an easy replace job.
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
Can someone confirm the production runs of the 231...
I've read that 91 and older is 21 spline and that 91 and up is 23 spline. I need a 231, to swap out my 91s 242. I just got a parts jeep that is a 95. Which is definitely a 23 spline.
My 91 is 4.0 HO, automatic (aw4), np242. Will it work or what? I'm thinking the confusion on the split may be that some 91s still had renix? I dunno.
I've read that 91 and older is 21 spline and that 91 and up is 23 spline. I need a 231, to swap out my 91s 242. I just got a parts jeep that is a 95. Which is definitely a 23 spline.
My 91 is 4.0 HO, automatic (aw4), np242. Will it work or what? I'm thinking the confusion on the split may be that some 91s still had renix? I dunno.
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Can someone confirm the production runs of the 231...
I've read that 91 and older is 21 spline and that 91 and up is 23 spline. I need a 231, to swap out my 91s 242. I just got a parts jeep that is a 95. Which is definitely a 23 spline.
My 91 is 4.0 HO, automatic (aw4), np242. Will it work or what? I'm thinking the confusion on the split may be that some 91s still had renix? I dunno.
I've read that 91 and older is 21 spline and that 91 and up is 23 spline. I need a 231, to swap out my 91s 242. I just got a parts jeep that is a 95. Which is definitely a 23 spline.
My 91 is 4.0 HO, automatic (aw4), np242. Will it work or what? I'm thinking the confusion on the split may be that some 91s still had renix? I dunno.
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
Originally Posted by dukie564
any 231 that came behind a 4.0 HO engine/ AW4 tranny will be 23 spline input. You'll need to verify the input shaft length on the 231 matches the 242, but it should work.
Seasoned Member
Joined: Jun 2011
Posts: 419
Likes: 0
From: Wichita
Year: 1987
Model: Cherokee
Engine: 4.0
Originally Posted by DieselD
Thank you for putting me at ease. Somewhat. Lol. I think they are the same. Guess we'll see. I've read though that they are either .840 or .750 and if they are different lengths that some RTV gasket around the tranny/tcase meeting should make the seal OK. Ever heard of that? Or is there a way to trim that if needed? I'm going to have the case apart for a sye and possibly partial rebuild anyways.




