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XJ Ask the Question Thread
How bout the coolant system itself? What's been done to ensure proper function of water pump, tstat, fan clutch, radiator.. Got a fan shroud?
CF Veteran
Joined: Jul 2009
Posts: 1,254
Likes: 11
From: London Ontario Canada
Year: 2000
Model: Cherokee
Engine: 4.0
I've been hunting all over the internet looking for one.
CF Veteran
Joined: Jan 2015
Posts: 1,381
Likes: 3
From: Southern Maryland
Year: 1991
Model: Cherokee
Engine: 1999 4.0L
There are a lot of cars that come with dual-electric fans from the factory. There's no magic to it, just avoid aftermarket crap.
Dear all,
I need urgent help. I just bought a second hand grand cherokee 2007. it lets white smoke out of the exhaust pipe. This happens after it was off for a longtime. It will some come for 3 to 4 miles and when i drive fast it stops but will come back if I let the car stopped with engine running. I am talking about a lot of white smoke. It comes and goes. Can anybody help? you can also feel the the engine shakes a little bit.
I need urgent help. I just bought a second hand grand cherokee 2007. it lets white smoke out of the exhaust pipe. This happens after it was off for a longtime. It will some come for 3 to 4 miles and when i drive fast it stops but will come back if I let the car stopped with engine running. I am talking about a lot of white smoke. It comes and goes. Can anybody help? you can also feel the the engine shakes a little bit.
Last edited by baba francois; Oct 22, 2015 at 09:47 AM.
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
Yes, many people have converted to full electric cooling, but many others have tried and found failure after failure before going back to mechanical or worse, damaging their engine.
Most electric fans can't come anywhere near the CFM (cubic feet per minute) rating of the stock mechanical fan. I've never seen the stock fan be inadequate, except when the fan clutch needs to be replaced (which is due about once every 15-20 years).
The only times I see an electric fan conversion as necessary are as follows:
1) Performance build, trying to steal every available horsepower.
2) Routine deep water crossings. The e-fan has the advantage of being turned off so it doesn't spin the blades while submerged.
I've never had a submergence problem with my clutch fan in the Comanche or the Wrangler, and they've both had water over the hood.
Last edited by NewKindOfClown; Oct 22, 2015 at 11:25 AM.
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
People use this argument a lot, but those cats are designed to use two electric fans. The XJ's radiator barely handles its duties when the cooling system is functioning 100%.
Yes, many people have converted to full electric cooling, but many others have tried and found failure after failure before going back to mechanical or worse, damaging their engine.
Most electric fans can't come anywhere near the CFM (cubic feet per minute) rating of the stock mechanical fan. I've never seen the stock fan be inadequate, except when the fan clutch needs to be replaced (which is due about once every 15-20 years).
The only times I see an electric fan conversion as necessary are as follows:
1) Performance build, trying to steal every available horsepower.
2) Routine deep water crossings. The e-fan has the advantage of being turned off so it doesn't spin the blades while submerged.
I've never had a submergence problem with my clutch fan in the Comanche or the Wrangler, and they've both had water over the hood.
Yes, many people have converted to full electric cooling, but many others have tried and found failure after failure before going back to mechanical or worse, damaging their engine.
Most electric fans can't come anywhere near the CFM (cubic feet per minute) rating of the stock mechanical fan. I've never seen the stock fan be inadequate, except when the fan clutch needs to be replaced (which is due about once every 15-20 years).
The only times I see an electric fan conversion as necessary are as follows:
1) Performance build, trying to steal every available horsepower.
2) Routine deep water crossings. The e-fan has the advantage of being turned off so it doesn't spin the blades while submerged.
I've never had a submergence problem with my clutch fan in the Comanche or the Wrangler, and they've both had water over the hood.
Well said
CF Veteran

Joined: Feb 2015
Posts: 1,528
Likes: 2
From: North Carolina
Year: 1993
Model: Cherokee
Engine: 4.0
Is there a,fuse/relay for the neutral safety switch? The PO cut the NSS wire. wouldn't that make the check engine light come on? And yes, the check engine light bulb does work.
CF Veteran




Joined: Jul 2012
Posts: 3,139
Likes: 360
From: Andover, VT
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0 L
1999 power window regulator.
I disassembled and was going to do the cotter pin trick but mine is broken differently.
Here is the part that most people talk about breaking. Still in good shape.
This is the issue, my "worm screw" is disconnected from the motor. The plastic cover over it has broken off and the worm cable was floating free in the door.

Can the motor/regulator be repaired so the worm cable stays where it needs to, or am I SOL and need to buy a new regulator?
I disassembled and was going to do the cotter pin trick but mine is broken differently.
Here is the part that most people talk about breaking. Still in good shape.
This is the issue, my "worm screw" is disconnected from the motor. The plastic cover over it has broken off and the worm cable was floating free in the door.
Can the motor/regulator be repaired so the worm cable stays where it needs to, or am I SOL and need to buy a new regulator?
CF Veteran
Joined: Jan 2015
Posts: 1,381
Likes: 3
From: Southern Maryland
Year: 1991
Model: Cherokee
Engine: 1999 4.0L
Most electric fans can't come anywhere near the CFM (cubic feet per minute) rating of the stock mechanical fan.
The only times I see an electric fan conversion as necessary are as follows:
1) Performance build, trying to steal every available horsepower.
2) Routine deep water crossings. The e-fan has the advantage of being turned off so it doesn't spin the blades while submerged.
1) Performance build, trying to steal every available horsepower.
2) Routine deep water crossings. The e-fan has the advantage of being turned off so it doesn't spin the blades while submerged.
4) Optimize the cooling characteristics with custom electronics, IE change activation temperature, manipulate individual cooling systems (evacuate exhaust heat on-demand), and so forth
For most people the stock mechanical setup is perfectly fine. For people who want something more, there are legitimate, proven, viable options for dual-electric. Somebody asks they should be given the information instead of told they don't know what they are doing.
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
That's what I said.
That's what I said.
Why? Do you realize how many people come on this site and have never used a hand tool before? The majority of CF membership is novices who often don't know what they need. It's rare for us to get a new member who has mechanical and electrical experience, and most of them are still new to the XJ platform.
When somebody asks about fundamentally changing an aspect of their vehicle's function, I think it's not only reasonable, but RESPONSIBLE, for us to find out their intentions.
We really don't need more half-finished scrap heaps or rolling fire hazards in our community, and the easiest way I've found to prevent it is to understand what a user is trying to accomplish.
When somebody asks about fundamentally changing an aspect of their vehicle's function, I think it's not only reasonable, but RESPONSIBLE, for us to find out their intentions.
We really don't need more half-finished scrap heaps or rolling fire hazards in our community, and the easiest way I've found to prevent it is to understand what a user is trying to accomplish.
Not sure if is the right place for this question but I did a search didn't find anything. Anybody know a good place to buy used XJ doors or other sheet meatal? I'm in Mi. what I've found here is worst than what I have. I really need a right front door my has a hole big enough you can put your head through it.
CF Veteran
Joined: Jan 2015
Posts: 1,381
Likes: 3
From: Southern Maryland
Year: 1991
Model: Cherokee
Engine: 1999 4.0L
Why? Do you realize how many people come on this site and have never used a hand tool before? The majority of CF membership is novices who often don't know what they need. It's rare for us to get a new member who has mechanical and electrical experience, and most of them are still new to the XJ platform.
When somebody asks about fundamentally changing an aspect of their vehicle's function, I think it's not only reasonable, but RESPONSIBLE, for us to find out their intentions.
We really don't need more half-finished scrap heaps or rolling fire hazards in our community, and the easiest way I've found to prevent it is to understand what a user is trying to accomplish.
When somebody asks about fundamentally changing an aspect of their vehicle's function, I think it's not only reasonable, but RESPONSIBLE, for us to find out their intentions.
We really don't need more half-finished scrap heaps or rolling fire hazards in our community, and the easiest way I've found to prevent it is to understand what a user is trying to accomplish.
I think we should answer people's questions, show them what's involved, and let them decide if they are capable and willing, or not.
Last edited by ehall; Oct 22, 2015 at 03:35 PM.
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
Not sure if is the right place for this question but I did a search didn't find anything. Anybody know a good place to buy used XJ doors or other sheet meatal? I'm in Mi. what I've found here is worst than what I have. I really need a right front door my has a hole big enough you can put your head through it.
They may have what you need
I have a 99 jeep cherokee larado. I've changed the til light, the bulb and the turn signal switch. nothings working. I'm running outta ideas here. the front one works just fine and so does the passenger side. I've already been pulled over because of it. I just don't know what else it could be, help?
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 here to help people fix problems and determine their needs. I don't care if you install a 20" lift and six electric fans, as long as you do it right. I care that it's safe and you don't put in all that time, money, and effort just to be dissatisfied with the result.
This really isn't the place for petty bickering, so I'm gonna go back to helping the users who ask for help.
Last edited by NewKindOfClown; Oct 22, 2015 at 03:49 PM.




