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XJ Ask the Question Thread
Seasoned Member
Joined: Oct 2013
Posts: 376
Likes: 5
From: Idaho
Year: 1991
Model: Cherokee
Engine: 4.0 Liter
Two questions about a trail-quality paint job for an XJ:
1) When repainting to a lighter color, how much paint should I be looking for to do the exterior and doorjambs?
2) For the sake of cost, simplicity, and future touch-ups, would single stage paint be the best option?
1) When repainting to a lighter color, how much paint should I be looking for to do the exterior and doorjambs?
2) For the sake of cost, simplicity, and future touch-ups, would single stage paint be the best option?


To this:


I messed with my gun and was able to lay down the paint with a smooth bedliner kind of texture:

She drives 3 hours a week on gravel, she's been nicked by people parallel parking and there's no spider cracking or chips. I couldn't even scratch it with my knife. So I'd says it very worthy of being used on a trail rig.
I've got the 4.0 auto. It has a block heater, it works great, but the tranny fluid is so thick sometimes that it has a hard time moving for the first little bit. So yea, I was thinking of putting a magnetic pan heater on the tranny oil pan. Bad idea?
Seasoned Member


Joined: Oct 2012
Posts: 328
Likes: 5
From: Dominican Republic
Year: 1990
Model: Cherokee
Engine: inline 6
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
When was the last time you changed the ATF? There are synthetics that will help. Don't forget the differentials. 80w90 dino juice feels like you left the brakes on when its super cold.
I bought a 96 cherokee a while ago and I no longer need or can afford to store it. I'm trying to get it ready to sell. One problem that has me confused is that when i'm driving, if i press the brake pedal, sometimes the radio will turn off, as soon as I let off the brake, the radio returns to normal function. Any thoughts?
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
I'm a newbie here and would like to see if anybody can help me out. My daughter bought a 1989 cherokee from somebody and they put a motor in it from a 1995 cherokee in it. The motor ran in the 1995 cherokee but it was totaled and now since she has bought this thing the motor has never run in the 1989 yet. It seems to have no spark and I just wanted to see if anybody knows if all the sensors and computer is the same in these two years or if there is something that I need to change. And what can I check to try and get this thing running for her? Thank you in advance for any suggestions
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
I'm a newbie here and would like to see if anybody can help me out. My daughter bought a 1989 cherokee from somebody and they put a motor in it from a 1995 cherokee in it. The motor ran in the 1995 cherokee but it was totaled and now since she has bought this thing the motor has never run in the 1989 yet. It seems to have no spark and I just wanted to see if anybody knows if all the sensors and computer is the same in these two years or if there is something that I need to change. And what can I check to try and get this thing running for her? Thank you in advance for any suggestions
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
I'm a newbie here and would like to see if anybody can help me out. My daughter bought a 1989 cherokee from somebody and they put a motor in it from a 1995 cherokee in it. The motor ran in the 1995 cherokee but it was totaled and now since she has bought this thing the motor has never run in the 1989 yet. It seems to have no spark and I just wanted to see if anybody knows if all the sensors and computer is the same in these two years or if there is something that I need to change. And what can I check to try and get this thing running for her? Thank you in advance for any suggestions
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
What I do know is that there are significant differences around the intake manifold. Sensors in the intake manifold (Throttle Position Sensor especially) aren't compatible between years, so if they were swapped over there's at least a chance that other parts were changed as well.
The original Renix intake side looks like this:

Note the size of fuel pressure regulator toward the front of the engine, the interesting vacuum harness, and the triangular shape of the intake hose where it screws into the throttle body.

OBD-I years like 1995 look like the above. No vacuum harness, sensors on the rear of the throttle body, intake hose is held on with a clamp, fuel pressure regulator is smaller.
One can only hope that if those parts were changed over, key components like the alternator, crank position sensor, and distributor sync generator (aka camshaft position sensor) were too.
That's not good... I'll have to let someone else chime in on how you might be able to tell as I'm not very familiar with earlier models.
What I do know is that there are significant differences around the intake manifold. Sensors in the intake manifold (Throttle Position Sensor especially) aren't compatible between years, so if they were swapped over there's at least a chance that other parts were changed as well.
The original Renix intake side looks like this:

Note the size of fuel pressure regulator toward the front of the engine, the interesting vacuum harness, and the triangular shape of the intake hose where it screws into the throttle body.

OBD-I years like 1995 look like the above. No vacuum harness, sensors on the rear of the throttle body, intake hose is held on with a clamp, fuel pressure regulator is smaller.
One can only hope that if those parts were changed over, key components like the alternator, crank position sensor, and distributor sync generator (aka camshaft position sensor) were too.
What I do know is that there are significant differences around the intake manifold. Sensors in the intake manifold (Throttle Position Sensor especially) aren't compatible between years, so if they were swapped over there's at least a chance that other parts were changed as well.
The original Renix intake side looks like this:

Note the size of fuel pressure regulator toward the front of the engine, the interesting vacuum harness, and the triangular shape of the intake hose where it screws into the throttle body.

OBD-I years like 1995 look like the above. No vacuum harness, sensors on the rear of the throttle body, intake hose is held on with a clamp, fuel pressure regulator is smaller.
One can only hope that if those parts were changed over, key components like the alternator, crank position sensor, and distributor sync generator (aka camshaft position sensor) were too.





