Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: General Overview
- Jeep Grand Cherokee WJ 1999 to 2004 Crash Test and Safety Ratings
Important Information to help you understand your Jeep Grand Cherokee.
Browse all: General Overview
XJ Ask the Question Thread
That's one of the rare occurrences where the novel is worthwhile. You provided good information. None of us can diagnose it from here, but statistically speaking, it's more likely that the mechanic is trying to get your money than it is that his story is true. If the radiator cracked and you can get it replaced free, that's where you should start. If the mechanic you trust says it's a bigger problem, maybe you rolled the dice and lost this time. But, sight unseen from sitting in my chair, I'd have it towed over.
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
Lmfao! Replacing a head gasket is much more easier than replacing the engine.
It also doesn't sound like the head gasket blew. Go ahead and have the radiator replaced. Don't use coolant, just water and run it and see if it overheats then go from there. (That's what I would do)
Also I'm willing to bet that the mechanic weren't gonna replace the engine either. Probably gonna charge you $2200 and just replace the radiator.
It also doesn't sound like the head gasket blew. Go ahead and have the radiator replaced. Don't use coolant, just water and run it and see if it overheats then go from there. (That's what I would do)
Also I'm willing to bet that the mechanic weren't gonna replace the engine either. Probably gonna charge you $2200 and just replace the radiator.
Likewise
Thanks to all, I am feeling encouraged. Maybe my trusty steed has not seen her last ride on the range.
I will have the radiator replaced and report back. Unfortunately as a warranty job, not a top priority. He can get to it Tuesday.
I guess I will be driving my 72 Monte Carlo and praying for nice weather for a few days. (Hate driving the Chevy in the rain)
This site is the best.
I will have the radiator replaced and report back. Unfortunately as a warranty job, not a top priority. He can get to it Tuesday.
I guess I will be driving my 72 Monte Carlo and praying for nice weather for a few days. (Hate driving the Chevy in the rain)
This site is the best.
CF Veteran
Joined: Aug 2015
Posts: 1,226
Likes: 11
From: Laurium, MI
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Sorry, you might have put me on a question rationing plan... but so far you guys have been a great wealth of info and I'm learning a lot. Just recently I've started getting a short, quick jerking while driving. It occurs most noticeably between 40-60mph under light acceleration. As soon as I let off or apply more than what it takes to simply maintain speed the jerking/hesitating stops. It's not constant and it fluctuates in intensity. I've tried downshifting to 3rd and the same phenomenon. The RPMS seem to stay steady and it only happens when the torque converter locks. Moderate to heavy acceleration no problems and the shifting between gears feels just as solid as before. If my fluid is a bit over max on the dipstick could that cause it? I've been reading maybe TPS or ignition. I haven't gotten around to a full ignition tune up but spark plugs are new as of a month or so ago. Leaving for work trips starting next Tuesday so I won't have time to order and receive parts and do that until I get back on one of my breaks. Thanks in advance!
Edit: '99 216kmi keep forgetting.
Edit: '99 216kmi keep forgetting.
Throttle position sensor.
Ever had a stereo with a sketchy volume ****? How in that sweet spot you always turn it up to, it's really crackly and you've gotta mess with it to get it to stop, or just turn it up more?
The TPS is identical to a volume ****. But instead of attenuating a sound into an amplifier, the PCM reads it as throttle position.
You can test this with an analog multimeter. Hook it up an start working the throttle. You should see the needle increasing (or decreasing, depending on which pins you connect), and then it will suddenly spaz out at a certain spot. Same thing will show up with an OBD-II scanner, but be throttle percent instead of a voltage or resistance.
Ever had a stereo with a sketchy volume ****? How in that sweet spot you always turn it up to, it's really crackly and you've gotta mess with it to get it to stop, or just turn it up more?
The TPS is identical to a volume ****. But instead of attenuating a sound into an amplifier, the PCM reads it as throttle position.
You can test this with an analog multimeter. Hook it up an start working the throttle. You should see the needle increasing (or decreasing, depending on which pins you connect), and then it will suddenly spaz out at a certain spot. Same thing will show up with an OBD-II scanner, but be throttle percent instead of a voltage or resistance.
Edit: 2 MAP codes actually P0107 and P1296
Edit 2: Yup, checked TPS with analog meter up and down a few times nice and smooth.
Last edited by rcguymike; Jul 7, 2016 at 07:33 PM.
CF Veteran
Joined: Oct 2013
Posts: 5,924
Likes: 203
From: Greenville, SC
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Are these the only two parts I need to rebuild both the front stock xj driveshaft and the zj front driveshaft I have in the rear? Obviously 6 u joints and 2 of the sockets
Spicer 211355X Socket Yoke Assembly https://www.amazon.com/dp/B00GAPLVCA..._9o7FxbFWC0DXV
Spicer 5-1310X U-Joint Kit https://www.amazon.com/dp/B009X1X91O..._Qq7FxbHRTM215
Spicer 211355X Socket Yoke Assembly https://www.amazon.com/dp/B00GAPLVCA..._9o7FxbFWC0DXV
Spicer 5-1310X U-Joint Kit https://www.amazon.com/dp/B009X1X91O..._Qq7FxbHRTM215
I will change out the lower control arm bushings. The jeep is on jack stands under the front axel. Is there anything for me to worry about when I take out the bolts holding the arm(s) in place? I will do one arm at a time. Can the front end separate/move a little with reference to the lower control arm location when the arm is removed? Any information is appreciated, thank you.
I will change out the lower control arm bushings. The jeep is on jack stands under the front axel. Is there anything for me to worry about when I take out the bolts holding the arm(s) in place? I will do one arm at a time. Can the front end separate/move a little with reference to the lower control arm location when the arm is removed? Any information is appreciated, thank you.
Junior Member
Joined: Jun 2016
Posts: 88
Likes: 20
From: Colorado
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0 (Renix)
Ha-ha yea I was kindof spamming those out I guess okay I have an 88 cherokee laredo with renix 4.0l
And ba10 5speed manual
I'm wanting to get rid of my BA-10 and D35 and someone recommend the Chrysler 8.25 rear diff and I've heard alot of good things about the AX-15 manual transmission so my questions are what do I find those in as well as how too identify them. and also what transfer case should I obtain as well as what things I should know about bolting those items onto my jeep as well as what gear ratio I should obtain (planning on putting 32" good year wrangler duratrec's on it) and what I should know about doing a lift kit I would like to do a 3.5" Rubicon express lift kit
And the lift kit question is asumeing I have the Chrysler 8.25 differential
Last edited by Nasty4.0; Jul 8, 2016 at 06:16 PM.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Yes indeed, lost in the cracks lol
Okay, cool.
Yes the BA10/5 is a time bomb. The AX-15 was the manual transmission behind 4.0L XJs from 1991 to 1999. Here are the two side-by-side. The Peugot junk is on the right. Note that the case is two halves and bolted in the middle:

In 1993 or 1994 the bell housing was changed so that the slave cylinder bolts up from the outside instead of being hidden away. Basically any AX-15 with an external slave will do the trick. There are a few other parts you'll need to buy new, as well. I am not certain what exactly needs changing to make the Renix flywheel compatible with the later transmission, or if there are any differences at all. There are quite a few threads on swapping transmissions, so I encourage you to search.
The D35 isn't very strong. The 29-spline Chrysler 8.25" axle, found in 1997 and newer XJs (some '96 models, too, but it's not predictable) is a significant upgrade. But, to be honest, unless you plan on beating the snot out of your rig with the differential locked, a D35 will hold onto light 32" tires like Duratracs. For that matter, a 27-spline Chrysler 8.25" will, too. Your XJ came geared with 3.07:1 axles. For the size tire you want, 3.55:1 is a good upgrade and REALLY EASY, because you can just get axles out of a 4.0L XJ that had an automatic transmission. My 3.55:1 D30 was free and my C8.25 was $90. Look around for partouts etc.
As for the lift advice, all I can say is be prepared to break or cut off every single fastener. Torch, penetrating oil, and angle grinder were essential to working on a rusty Heep like mine. Post in the Modified Tech section for more on lift stuff.
Ha-ha yea I was kindof spamming those out I guess okay I have an 88 cherokee laredo with renix 4.0l
And ba10 5speed manual
I'm wanting to get rid of my BA-10 and D35 and someone recommend the Chrysler 8.25 rear diff and I've heard alot of good things about the AX-15 manual transmission so my questions are what do I find those in as well as how too identify them. and also what transfer case should I obtain as well as what things I should know about bolting those items onto my jeep as well as what gear ratio I should obtain (planning on putting 32" good year wrangler duratrec's on it) and what I should know about doing a lift kit I would like to do a 3.5" Rubicon express lift kit
And ba10 5speed manual
I'm wanting to get rid of my BA-10 and D35 and someone recommend the Chrysler 8.25 rear diff and I've heard alot of good things about the AX-15 manual transmission so my questions are what do I find those in as well as how too identify them. and also what transfer case should I obtain as well as what things I should know about bolting those items onto my jeep as well as what gear ratio I should obtain (planning on putting 32" good year wrangler duratrec's on it) and what I should know about doing a lift kit I would like to do a 3.5" Rubicon express lift kit
Okay, cool.
Yes the BA10/5 is a time bomb. The AX-15 was the manual transmission behind 4.0L XJs from 1991 to 1999. Here are the two side-by-side. The Peugot junk is on the right. Note that the case is two halves and bolted in the middle:

In 1993 or 1994 the bell housing was changed so that the slave cylinder bolts up from the outside instead of being hidden away. Basically any AX-15 with an external slave will do the trick. There are a few other parts you'll need to buy new, as well. I am not certain what exactly needs changing to make the Renix flywheel compatible with the later transmission, or if there are any differences at all. There are quite a few threads on swapping transmissions, so I encourage you to search.
The D35 isn't very strong. The 29-spline Chrysler 8.25" axle, found in 1997 and newer XJs (some '96 models, too, but it's not predictable) is a significant upgrade. But, to be honest, unless you plan on beating the snot out of your rig with the differential locked, a D35 will hold onto light 32" tires like Duratracs. For that matter, a 27-spline Chrysler 8.25" will, too. Your XJ came geared with 3.07:1 axles. For the size tire you want, 3.55:1 is a good upgrade and REALLY EASY, because you can just get axles out of a 4.0L XJ that had an automatic transmission. My 3.55:1 D30 was free and my C8.25 was $90. Look around for partouts etc.
As for the lift advice, all I can say is be prepared to break or cut off every single fastener. Torch, penetrating oil, and angle grinder were essential to working on a rusty Heep like mine. Post in the Modified Tech section for more on lift stuff.
Junior Member
Joined: Jun 2016
Posts: 88
Likes: 20
From: Colorado
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0 (Renix)
Yes indeed, lost in the cracks lol
Okay, cool.
Yes the BA10/5 is a time bomb. The AX-15 was the manual transmission behind 4.0L XJs from 1991 to 1999. Here are the two side-by-side. The Peugot junk is on the right. Note that the case is two halves and bolted in the middle:
In 1993 or 1994 the bell housing was changed so that the slave cylinder bolts up from the outside instead of being hidden away. Basically any AX-15 with an external slave will do the trick. There are a few other parts you'll need to buy new, as well. I am not certain what exactly needs changing to make the Renix flywheel compatible with the later transmission, or if there are any differences at all. There are quite a few threads on swapping transmissions, so I encourage you to search.
The D35 isn't very strong. The 29-spline Chrysler 8.25" axle, found in 1997 and newer XJs (some '96 models, too, but it's not predictable) is a significant upgrade. But, to be honest, unless you plan on beating the snot out of your rig with the differential locked, a D35 will hold onto light 32" tires like Duratracs. For that matter, a 27-spline Chrysler 8.25" will, too. Your XJ came geared with 3.07:1 axles. For the size tire you want, 3.55:1 is a good upgrade and REALLY EASY, because you can just get axles out of a 4.0L XJ that had an automatic transmission. My 3.55:1 D30 was free and my C8.25 was $90. Look around for partouts etc.
As for the lift advice, all I can say is be prepared to break or cut off every single fastener. Torch, penetrating oil, and angle grinder were essential to working on a rusty Heep like mine. Post in the Modified Tech section for more on lift stuff.
Okay, cool.
Yes the BA10/5 is a time bomb. The AX-15 was the manual transmission behind 4.0L XJs from 1991 to 1999. Here are the two side-by-side. The Peugot junk is on the right. Note that the case is two halves and bolted in the middle:
In 1993 or 1994 the bell housing was changed so that the slave cylinder bolts up from the outside instead of being hidden away. Basically any AX-15 with an external slave will do the trick. There are a few other parts you'll need to buy new, as well. I am not certain what exactly needs changing to make the Renix flywheel compatible with the later transmission, or if there are any differences at all. There are quite a few threads on swapping transmissions, so I encourage you to search.
The D35 isn't very strong. The 29-spline Chrysler 8.25" axle, found in 1997 and newer XJs (some '96 models, too, but it's not predictable) is a significant upgrade. But, to be honest, unless you plan on beating the snot out of your rig with the differential locked, a D35 will hold onto light 32" tires like Duratracs. For that matter, a 27-spline Chrysler 8.25" will, too. Your XJ came geared with 3.07:1 axles. For the size tire you want, 3.55:1 is a good upgrade and REALLY EASY, because you can just get axles out of a 4.0L XJ that had an automatic transmission. My 3.55:1 D30 was free and my C8.25 was $90. Look around for partouts etc.
As for the lift advice, all I can say is be prepared to break or cut off every single fastener. Torch, penetrating oil, and angle grinder were essential to working on a rusty Heep like mine. Post in the Modified Tech section for more on lift stuff.
Is the transfercase that came with AX-15 transmissions good enough?
Also I don't plan on doing hardcore extreme 4wheeling mostly joy rides through the mountain trails for camping, shooting ETC but I want to get lockers and am pretty impressed with the OX locker and I figured if I'm going to put $900 into just a locker upgrade I better make sure it will last is why I want to upgrade my rear differential
Any experience with lockers?
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Awesome man thank you for the help I will update you guys as she comes together
Is the transfercase that came with AX-15 transmissions good enough?
Also I don't plan on doing hardcore extreme 4wheeling mostly joy rides through the mountain trails for camping, shooting ETC but I want to get lockers and am pretty impressed with the OX locker and I figured if I'm going to put $900 into just a locker upgrade I better make sure it will last is why I want to upgrade my rear differential
Any experience with lockers?
Is the transfercase that came with AX-15 transmissions good enough?
Also I don't plan on doing hardcore extreme 4wheeling mostly joy rides through the mountain trails for camping, shooting ETC but I want to get lockers and am pretty impressed with the OX locker and I figured if I'm going to put $900 into just a locker upgrade I better make sure it will last is why I want to upgrade my rear differential
Any experience with lockers?
Well, what transfer case is it? lol... most commonly, it's a NP231, but it could have been swapped out or came with something else. NP231 and NP242 are probably the most common. Either of which would be fine for your application, but you won't really get any benefit out of the "4wd full-time" mode on the np242 if either one of your axles have an actual locker in it. LSD differentials is best for the NP242.
CF Veteran
Joined: Mar 2012
Posts: 1,024
Likes: 2
From: Quebec
Year: 1996
Model: Cherokee
Engine: 4.0L
i went and did some light trails today. when in a bumpy terrain with 4LO engaged, i got a couple loud clunks or "bang" if I can call it that, coming from the front end when turning. I believe it is from the diff, but unsure if it's normal or not. I was not on pavement, but it wasn't slippery either. to me it's not normal but in 4hi full time and 2hi there is no sound to be heard (i have not tested 4hi part time, never use it)
normal? not normal? how to tell without opening the diff? there is no unusual sound from that area when driving "normally".
normal? not normal? how to tell without opening the diff? there is no unusual sound from that area when driving "normally".





