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XJ Ask the Question Thread
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
So after starting it sputters til I start driving then it immediately feels sluggish it's like it won't shift up in gears no matter how hard you press on the gas it will make a clunking sound if you stay in the gas too hard, I usually let off the gas and problem subsides in about 20 seconds and the jeep will accelerate normally from that point on. If I park and turn it off and come back 10 mins later and start it again it does the same thing. Any suggestions on what the problem is I've debated whether or not it is the oxygen sensor I replaced it once about 70000 miles ago. It's a 1999 jeep Cherokee sport with a straight 6 4.0 L engine
So, I'm getting into the Jeep world now, "Cherokee", been looking around and looking to buy a 90-92 Cherokee, besides the common wear that I know what to look for, what's consider high in milags for these cherokee? I know that the engines are bulletproof but hard to fine them under 180k mostly they are 215k+??? Please any suggestions are welcome.
Have you scanned it for trouble codes?
Have you scanned it for trouble codes?
Nope. Could cause some nasty driveline vibes but certainly not oscillation of the front suspension.
I'd say 300k is generally considered high - not that you want to aim for something that high of course. Why the 1990-1992 range? You should know that the 1987-1990 generation has a lot of differences under the hood from a 1991. 1991-1995 are essentially identical.
Have you scanned it for trouble codes?
Nope. Could cause some nasty driveline vibes but certainly not oscillation of the front suspension.
I'd say 300k is generally considered high - not that you want to aim for something that high of course. Why the 1990-1992 range? You should know that the 1987-1990 generation has a lot of differences under the hood from a 1991. 1991-1995 are essentially identical.
CF Veteran
Joined: Feb 2012
Posts: 1,206
Likes: 2
From: Southern Oregon
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by salad
Nope. Could cause some nasty driveline vibes but certainly not oscillation of the front suspension.
CF Veteran
Joined: Aug 2015
Posts: 1,226
Likes: 11
From: Laurium, MI
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Mostly cause ofor my budget unfortunately, I'm looking at a 1992 with 180k+ 3in lift only bad thing is no headliner and he's asking 2100. I'm trying to stick to under 2200, it most to hunt and take on fire trails and use its 4x4 when needed not going to be my daily driver if that helps....
Got a stock "96 that I would like to do a modest lift on... 3" at most. Keep seeing these "Death Wobble" post. I'd like to lift mine but my kids will be driving it and do not want to do anything that would make this XJ dangerous.
So my "ask a question" is... just how common is the dreaded death wobble.
This xj has about 190k miles and 99% of those have just been normal city/highway driving.
So my "ask a question" is... just how common is the dreaded death wobble.
This xj has about 190k miles and 99% of those have just been normal city/highway driving.
Ok. I have three jeep Cherokees a 90 a 93 and a 95. My question is. Is their a better transfer case. My 99 have a full time on the shifter for 4 wheel drive the others have part time.. will the 1990 transfer case work in my 93 so I have full time when I want it..also is the rear energy and front axles better in the 99. They look different..
CF Veteran

Joined: Feb 2015
Posts: 1,528
Likes: 2
From: North Carolina
Year: 1993
Model: Cherokee
Engine: 4.0
Headlight high beams flicker on and off over bumps, then I pull the dash out to replace the heater core and evaporator and put everything back together. Now the regular headlights flicker and the high beams work fine (so far). What's it sound like? I pulled the headlight switch out while I had the dash out and it wasn't melted and looked fine. Any ideas? Thanks
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Got a stock "96 that I would like to do a modest lift on... 3" at most. Keep seeing these "Death Wobble" post. I'd like to lift mine but my kids will be driving it and do not want to do anything that would make this XJ dangerous. So my "ask a question" is... just how common is the dreaded death wobble. This xj has about 190k miles and 99% of those have just been normal city/highway driving.
Death wobble is something that our Jeeps - and even newer models with a similar front end - develop as components wear. The actual problem is basically the entire front axle shakes side-to-side. Lifting these vehicles, and in turn increasing operating angles of the old components, is the most common cause. Things like the factory track bar do not last long when lifted - this is probably the #1 problem. It can also be set off by off-balance tires, with enough momentum behind them to force the axle to shake.
Basically, if you do things properly, your chances of getting death wobble are very very slim. At 190k it would be a decent investment to just replace bushings and joints up front anyway.
Ok. I have three jeep Cherokees a 90 a 93 and a 95. My question is. Is their a better transfer case. My 99 have a full time on the shifter for 4 wheel drive the others have part time.. will the 1990 transfer case work in my 93 so I have full time when I want it..also is the rear energy and front axles better in the 99. They look different..
Transmission is very important too...
Headlight high beams flicker on and off over bumps, then I pull the dash out to replace the heater core and evaporator and put everything back together. Now the regular headlights flicker and the high beams work fine (so far). What's it sound like? I pulled the headlight switch out while I had the dash out and it wasn't melted and looked fine. Any ideas? Thanks
CF Veteran

Joined: Feb 2015
Posts: 1,528
Likes: 2
From: North Carolina
Year: 1993
Model: Cherokee
Engine: 4.0
Could easily be a pending code that the PCM is hanging on to that will tell you the problem. The issue could be O2 sensor related, or the throttle position sensor, or a couple other things including ignition Good question, however not really "OEM" since it's a lifted thing. Death wobble is something that our Jeeps - and even newer models with a similar front end - develop as components wear. The actual problem is basically the entire front axle shakes side-to-side. Lifting these vehicles, and in turn increasing operating angles of the old components, is the most common cause. Things like the factory track bar do not last long when lifted - this is probably the #1 problem. It can also be set off by off-balance tires, with enough momentum behind them to force the axle to shake. Basically, if you do things properly, your chances of getting death wobble are very very slim. At 190k it would be a decent investment to just replace bushings and joints up front anyway. So you have four Jeeps? 1990 is different from 1993 and 1995 which have differences from 1999. Transmission is very important too... Multi function switch on the column?
Junior Member
Joined: Oct 2016
Posts: 37
Likes: 0
From: Oceanside, CA.
Year: '99
Model: Cherokee
Engine: 4.0 I6
Hey all.....I finished replacing my brake booster check valve, in hopes of that "fixing" my assumed vac leak causing my bogging down issue...to no avail. I have a couple pics I would like to show, but for now, a more pressing matter has come to my attention. I checked my fuses, for the first time since owning her for a month, my bad, I know...but I'm just learning, so....I find this! ....9 fuses are "wrong"! 
(According to my owners manual at least)
1. Why would someone put a fuse in an open slot? (Two of my opens happen to have fuses in them) And vice versa?
2. With so many wrong ones, was the PO trying to make up for ampage? For example, I have two 30's in what is suppose to be a 15 and 20, but have open slots for what should be a 15 and 20? Get it?
3. Why havent I blown up yet???
Safe to drive still?

(According to my owners manual at least)
1. Why would someone put a fuse in an open slot? (Two of my opens happen to have fuses in them) And vice versa?
2. With so many wrong ones, was the PO trying to make up for ampage? For example, I have two 30's in what is suppose to be a 15 and 20, but have open slots for what should be a 15 and 20? Get it?
3. Why havent I blown up yet???
Safe to drive still?
Last edited by 99xjem; Oct 13, 2016 at 03:56 PM.
CF Veteran
Joined: May 2015
Posts: 1,472
Likes: 5
From: San Antonio, TX
Year: 1992
Model: Cherokee
Engine: 4.0L H.O.
Anybody have a set of OEM fender flares for a 97-01? Don't need the mounting brackets.
Gonna be cutting em up so I don't want to drop coin for new repops. But before I start hitting the JYs, figured I'd see if anybody on here has a set laying around they wanna unload for a little $$$.
PM me.
Gonna be cutting em up so I don't want to drop coin for new repops. But before I start hitting the JYs, figured I'd see if anybody on here has a set laying around they wanna unload for a little $$$.
PM me.
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
Anybody have a set of OEM fender flares for a 97-01? Don't need the mounting brackets.
Gonna be cutting em up so I don't want to drop coin for new repops. But before I start hitting the JYs, figured I'd see if anybody on here has a set laying around they wanna unload for a little $$$.
PM me.
Gonna be cutting em up so I don't want to drop coin for new repops. But before I start hitting the JYs, figured I'd see if anybody on here has a set laying around they wanna unload for a little $$$.
PM me.
Hey all.....I finished replacing my brake booster check valve, in hopes of that "fixing" my assumed vac leak causing my bogging down issue...to no avail. I have a couple pics I would like to show, but for now, a more pressing matter has come to my attention. I checked my fuses, for the first time since owning her for a month, my bad, I know...but I'm just learning, so....I find this! ....9 fuses are "wrong"! 
(According to my owners manual at least)
1. Why would someone put a fuse in an open slot? (Two of my opens happen to have fuses in them) And vice versa?
2. With so many wrong ones, was the PO trying to make up for ampage? For example, I have two 30's in what is suppose to be a 15 and 20, but have open slots for what should be a 15 and 20? Get it?
3. Why havent I blown up yet???
Safe to drive still?

(According to my owners manual at least)
1. Why would someone put a fuse in an open slot? (Two of my opens happen to have fuses in them) And vice versa?
2. With so many wrong ones, was the PO trying to make up for ampage? For example, I have two 30's in what is suppose to be a 15 and 20, but have open slots for what should be a 15 and 20? Get it?
3. Why havent I blown up yet???
Safe to drive still?You could replace them all with factory amperage fuses. That would ensure your electrical system is safe, and you'd also find out if you have any shorts because the fuse would blow when that circuit is used.
Junior Member
Joined: Oct 2016
Posts: 37
Likes: 0
From: Oceanside, CA.
Year: '99
Model: Cherokee
Engine: 4.0 I6
Thanks NKOC, I did triple check both fuse houses, OM and took pics just to make sure. Is buying the fuses specifically used by the factory the only way to go? Like sensors? Or can I just buy a fuse from Napa or another auto store sufficient enough?




