Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
Old 09-21-2015, 03:49 PM
How-Tos on this Topic
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: General Overview
Print Wikipost

XJ Ask the Question Thread

Thread Tools
 
Search this Thread
 
Old 08-26-2010, 02:13 AM
  #1231  
CF Veteran
Thread Starter
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383
Likes: 0
Received 5 Likes on 1 Post
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Default

Originally Posted by paykoman86
Im 100% Polish living in Chicago ;P
what is the CPS responsible for ?
I had a little argue with the steelership today & had to pay $200
for a diagnosis + Fuel pressure TEST, Fuel DRAIN & $20 worth of new fuel and another DRB TEST (no misfire codes )
Result--> Needs NEW PCM ,ONLY NEW NO GUARANTY or possibility of returning if doesnt help $1000
they said that they will not do any more testing b/c they dont need to :O
(I was hoping for a engine compression check & injector noid test)
Found a place that says that they will check my ECU-PCM-CPU for $40
reprogram it for $90 and if its bad a used reprogramed for $250
SADLY Im not able to any work on the car myself b/c of where I live
I know previous owner verry well, he left me the car after getting 4th DUI
befor leaving he told me that there was a lot of work done on a car like
1 of coil packs is new, spark plugs, wires, new exhaused, shocks, TMC reseted, ETC
but I dont really know what exaclly was accually DONE and checked !!
no receipts, no phone numbers
so I cant really relay on what he said :/
what do you think ? what should I do ?
The CPS is responsible of spark and injection timing.
anyway if you need a PCM go to pick one at the JY, you can easily do the work your own, the computer is under the hood.
fantic238 is offline  
Old 08-26-2010, 02:15 AM
  #1232  
CF Veteran
Thread Starter
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383
Likes: 0
Received 5 Likes on 1 Post
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Default

Originally Posted by Brian Totten
I may be missing something, cuz I just joined, but how do I post a question??? I may be old, but I've owned quite a few Jeeps from a 1951 M1B (Still have it) to a 2004 Grand Cherokee - The older ones I've a bit of knowledge to share, but these new fangled ones with OBD II code readers and the like are a little beyond me - Could use some help!!
You mean how do you start your own thread...
go in the section you want to post in and hit the blue button "new thread".
fantic238 is offline  
Old 08-26-2010, 02:32 AM
  #1233  
Member
 
Russian's Avatar
 
Join Date: Jul 2008
Location: Daytona Beach, Fl
Posts: 222
Likes: 0
Received 0 Likes on 0 Posts
Year: 1988
Model: Cherokee
Engine: 4.0
Default

what controls the voltage for the fuel pump?? im only gettin 6v at the pump connection. i was runnning fine 2 nights ago than stoped to get some gas than started it up and it only stutterd. i ran jumper wires straight to the battery and it starts right up. im thinking the low voltage is having to do something with this. thanks
Russian is offline  
Old 08-26-2010, 02:34 AM
  #1234  
CF Veteran
Thread Starter
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383
Likes: 0
Received 5 Likes on 1 Post
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Default

Originally Posted by Russian
what controls the voltage for the fuel pump?? im only gettin 6v at the pump connection. i was runnning fine 2 nights ago than stoped to get some gas than started it up and it only stutterd. i ran jumper wires straight to the battery and it starts right up. im thinking the low voltage is having to do something with this. thanks
Bypass the ballast resistor, that ceramic thing on the left inner fender wall, near to the egr solenoid.
fantic238 is offline  
Old 08-26-2010, 10:51 AM
  #1235  
Senior Member
 
mtparker97's Avatar
 
Join Date: Mar 2010
Location: Hampton, Virginia
Posts: 660
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Engine: none other
Default

hey all im trying to replace my rear output seal on the 231. wondering if there is a way to remove and replace the seal without taking the housing off and breaking the RTV? i have the newer style 231 so i dont have the long tail shaft housing. thanks for the help.
mtparker97 is offline  
Old 08-26-2010, 10:56 AM
  #1236  
CF Veteran
Thread Starter
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383
Likes: 0
Received 5 Likes on 1 Post
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Default

Originally Posted by mtparker97
hey all im trying to replace my rear output seal on the 231. wondering if there is a way to remove and replace the seal without taking the housing off and breaking the RTV? i have the newer style 231 so i dont have the long tail shaft housing. thanks for the help.
hammer and flat screwdriver make a hole on the seal face and pull it out. Tap the new seal in place with either a wrench extention or something that fits around the shaft.
fantic238 is offline  
Old 08-26-2010, 10:58 AM
  #1237  
Senior Member
 
mtparker97's Avatar
 
Join Date: Mar 2010
Location: Hampton, Virginia
Posts: 660
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Engine: none other
Default

Originally Posted by fantic238
hammer and flat screwdriver make a hole on the seal face and pull it out. Tap the new seal in place with either a wrench extention or something that fits around the shaft.

ok thanks thats what i thought but couldnt remeber for sure. yeah putting the new one is is the hard part again thanks. time to get to hammering
mtparker97 is offline  
Old 08-26-2010, 11:22 AM
  #1238  
Newbie
 
Whit's Avatar
 
Join Date: Aug 2010
Location: Carson Wa
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Year: 1995
Model: Cherokee
Engine: 4.0
Default HO or NON HO

is there any way I can tell for sure if my 4.0 is an HO or non HO..just by looking at he engine..if not how do I tell? thanks for the help.
Whit is offline  
Old 08-26-2010, 11:30 AM
  #1239  
Newbie
 
Whit's Avatar
 
Join Date: Aug 2010
Location: Carson Wa
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Year: 1995
Model: Cherokee
Engine: 4.0
Default

Also I cant seem to find the timing grid in the front of thr engine..when I loosen the distributer clamp..I can only rotate it less than an inch..its like i cant time it..any tips? Thanks
Whit is offline  
Old 08-26-2010, 11:43 AM
  #1240  
Newbie
 
manny's Avatar
 
Join Date: Aug 2010
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

ive got a 4x4 2.5 5spd. 85 cherokee xj t-case np231 and a donor 00 grand cherokee 4.0 injected i-6 2x4 auto, does anyone know what parts are swappable and what arent ?
manny is offline  
Old 08-26-2010, 03:28 PM
  #1241  
CF Veteran
 
xj_maniac_newb's Avatar
 
Join Date: Sep 2009
Location: Summerville, Ga
Posts: 6,322
Likes: 0
Received 5 Likes on 5 Posts
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Default

Originally Posted by manny
ive got a 4x4 2.5 5spd. 85 cherokee xj t-case np231 and a donor 00 grand cherokee 4.0 injected i-6 2x4 auto, does anyone know what parts are swappable and what arent ?
definitely know the tranny isnt unless you dont want 4x4
xj_maniac_newb is offline  
Old 08-26-2010, 06:07 PM
  #1242  
Newbie
 
mccauley84's Avatar
 
Join Date: Aug 2010
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

fantic238 yeah i replaced my plugs wires cap rotor etc.. still haveing problems with it I put the old cps back on and the idle is back to normal but im back to where i started as its still stalling out ! The first one i bought was mastercraft through oreillys aftermarket Im gonna pick one up from the jeep dealership tomorrow hopeing that will do it!
mccauley84 is offline  
Old 08-26-2010, 10:42 PM
  #1243  
Junior Member
 
Marine Mike's Avatar
 
Join Date: Feb 2010
Location: Arizona
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Year: 98
Model: Cherokee
Engine: 4.0
Red face front dana 44 hubs?????

So I've decided to "go big or go home", and do a full with axle swap, but I've already found myself lost with these things called " manual locking hubs", not really an XJ thing lol. So what I've got is a 78' ford dana 44, and I've changed the outers to the heavy duty, external mount hubs, but what my question is, is what spline hubs do I need with the heavy duty outers and are they compatible with what I already have?????? Please help!!
Marine Mike is offline  
Old 08-27-2010, 01:57 AM
  #1244  
Newbie
 
manny's Avatar
 
Join Date: Aug 2010
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

does some one know what trannys are compatable with the np231 shift pattern thnx-newbee jeep freak
manny is offline  
Old 08-27-2010, 02:16 AM
  #1245  
CF Veteran
Thread Starter
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383
Likes: 0
Received 5 Likes on 1 Post
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Default

Originally Posted by Whit
is there any way I can tell for sure if my 4.0 is an HO or non HO..just by looking at he engine..if not how do I tell? thanks for the help.
Look under the exhaust manifold. Does it have the knock sensor?
fantic238 is offline  


Quick Reply: XJ Ask the Question Thread



All times are GMT -5. The time now is 04:39 PM.