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XJ Ask the Question Thread
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
POSTED THIS 4 DAYS AGO AND NO RESPONCE!!! Does anybody have a clue?I am new to the forum but not to the Cherokee Scene! I have 3 Cherokee's and love em all. BUT I recently purchased a 99 sport with the 4.0 in it and when I got it it had been sitting for 6 months or so. It started right up and ran like a top. After driving it 10 miles or so it started surging. This got worse, then it started flooding and blowing black smoke. This was periodically at first but got to where it did it most of the time. I went 98 miles on a tank of gas. I let it set for a few days then it wouldn't start at all. Checked the pressure on the fuel rail and there was none. So I put a pump in it, still no pressure, checked the wires at the tank and none seem to have power but the fuel gauge works. I can start it up on either but that's it.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Take the bulbs out of the taillight assemblies and inspect the sockets. Bulbs also.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
POSTED THIS 4 DAYS AGO AND NO RESPONCE!!! Does anybody have a clue?I am new to the forum but not to the Cherokee Scene! I have 3 Cherokee's and love em all. BUT I recently purchased a 99 sport with the 4.0 in it and when I got it it had been sitting for 6 months or so. It started right up and ran like a top. After driving it 10 miles or so it started surging. This got worse, then it started flooding and blowing black smoke. This was periodically at first but got to where it did it most of the time. I went 98 miles on a tank of gas. I let it set for a few days then it wouldn't start at all. Checked the pressure on the fuel rail and there was none. So I put a pump in it, still no pressure, checked the wires at the tank and none seem to have power but the fuel gauge works. I can start it up on either but that's it.
There is no logical way that a bad fuel pump can cause flooding.
There's another issue somewhere.
Describe "seem to have power". That's a bit vague.
PS: You would have gotten more responses posting in OEM Tech me thinks.
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
Injector might be stuck open pumping too much fuel in... in which case, you may be close to hydraulic-ing a cylinder
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
POSTED THIS 4 DAYS AGO AND NO RESPONCE!!! Does anybody have a clue?I am new to the forum but not to the Cherokee Scene! I have 3 Cherokee's and love em all. BUT I recently purchased a 99 sport with the 4.0 in it and when I got it it had been sitting for 6 months or so. It started right up and ran like a top. After driving it 10 miles or so it started surging. This got worse, then it started flooding and blowing black smoke. This was periodically at first but got to where it did it most of the time. I went 98 miles on a tank of gas. I let it set for a few days then it wouldn't start at all. Checked the pressure on the fuel rail and there was none. So I put a pump in it, still no pressure, checked the wires at the tank and none seem to have power but the fuel gauge works. I can start it up on either but that's it.
What routine maintenance have you done to said vehicle when you first brought it home
Junior Member
Joined: Mar 2013
Posts: 84
Likes: 0
From: Cape Cod
Year: 1992
Model: Cherokee
Engine: 4.0
I have a d30 with an Aussie locker in it, question is would it be more work to swap the locker or just swap the axle? Both are 3:55 and high pinion. I have mechanical knowledge but never done lockers or gears
CF Veteran
Joined: Feb 2013
Posts: 1,802
Likes: 2
From: Justin, TEXAS
Year: 1988
Model: Cherokee
Engine: 4.0
Also if you already don't have the 297 u joint shafts in the axle in the jeep swap those in if the other axle is 95+
Last edited by 884x4; Sep 20, 2014 at 11:45 AM.
Junior Member
Joined: Mar 2013
Posts: 84
Likes: 0
From: Cape Cod
Year: 1992
Model: Cherokee
Engine: 4.0
The one with the locker is out of a 92 with abs and it would go into a 96 without abs
CF Veteran
Joined: Feb 2013
Posts: 1,802
Likes: 2
From: Justin, TEXAS
Year: 1988
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Feb 2013
Posts: 1,802
Likes: 2
From: Justin, TEXAS
Year: 1988
Model: Cherokee
Engine: 4.0




