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Important Information to help you understand your Jeep Grand Cherokee.
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XJ Ask the Question Thread
Seasoned Member
Joined: Nov 2010
Posts: 282
Likes: 0
From: SalinasCA
Year: 1991
Model: Cherokee
Engine: 4.0 L, 242 CID
Check engine light
my check engine light has started to concern me. 
the past two nights in a row it will come on at start up, then if i turn off the vehicle and turn it back on the light goes off. whats up?
the past two nights in a row it will come on at start up, then if i turn off the vehicle and turn it back on the light goes off. whats up?
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by A55MULL3T
my check engine light has started to concern me. the past two nights in a row it will come on at start up, then if i turn off the vehicle and turn it back on the light goes off. whats up?
the past two nights in a row it will come on at start up, then if i turn off the vehicle and turn it back on the light goes off. whats up?
☠ CF Sheriff ☠
Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
The newer Jeeps 1991-1996 XJ Cherokee and YJ Wrangler are equipped with an onboard problem reporting system that communicates to the owner through the check engine light. Not simply an "idiot" light, the check engine light can be triggered to flash in a series like morse code, where the user counts the number of flashes and looks up the corresponding trouble codes. These flashes equate to two digit numbers that report back, more or less, exactly what is failing on your Jeep.
When your check engine light comes on, do the following procedure to determine what is causing the system to report a problem. With the ignition off, switch the key on, off, on, off, on. (This needs to happen in under 5 seconds) Make sure you don't actually start your Jeep, turn the ignition to the ON position, but do not turn it so far that you start cranking the engine.
The check engine light will start to flash, count these flashes. Each code is a two digit number, for example 23 would be FLASH FLASH <pause> FLASH FLASH FLASH <long pause>
It will never flash more than 9 times, watch for pauses! The end of sequence code is 55.
When your check engine light comes on, do the following procedure to determine what is causing the system to report a problem. With the ignition off, switch the key on, off, on, off, on. (This needs to happen in under 5 seconds) Make sure you don't actually start your Jeep, turn the ignition to the ON position, but do not turn it so far that you start cranking the engine.
The check engine light will start to flash, count these flashes. Each code is a two digit number, for example 23 would be FLASH FLASH <pause> FLASH FLASH FLASH <long pause>
It will never flash more than 9 times, watch for pauses! The end of sequence code is 55.
Seasoned Member
Joined: Jan 2011
Posts: 295
Likes: 0
From: Roscoe, IL
Year: 2000
Model: Cherokee
Engine: 4.0L 242 Power Tech I6
☠ CF Sheriff ☠
Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
EricsXJ wrote this one - not exactly a repair manual but VERY highly recommended
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Originally Posted by zimbobwye
Dukie, seriously.. Screw Chilton & Haynes.. You should just gather your wealth of knowledge and write your own Manual! hahah. I'd buy it.
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
How does the spare tire mount in the back hatch of a new cherokee? I see the black bracket coming out of the left side with 2 holes I believe? But I guess I am missing what holds it on there..
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
I need help with the GC shift ****. I checked the searches and I know how to put it on but heating it and mashing it hasn't gotten it to shift in and out of park. I have an 01 and would like to get it to work for anyone that did this on a late model xj thanks in advance
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by 7urtle
where do people run wires through the firewall at? foglights and cb radio
CF Veteran
Joined: Oct 2010
Posts: 1,756
Likes: 1
From: Salem Nh
Year: 1998
Model: Cherokee
Engine: 4.0
Originally Posted by Celticclove
I got a 3" lift how much drop should i have on my transfer case?