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XJ Ask the Question Thread
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Join Date: Jan 2013
Location: hambleton, wv
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Year: 1997
Model: Cherokee
Engine: 4.0
im gonna get the actual leafs for the back, it has the add a leaf and it was done with new shocks n everything. and i didnt think the chips were worth it, ive never really heard any good about them
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Join Date: May 2013
Location: Washington, MO
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Year: 2000
Model: Cherokee
Engine: 4.0
This is a great thread concept.
I'm going to buy rotors and front pads today. I was thinking of going with Wagners.. anyone else have their preference?
I'm going to buy rotors and front pads today. I was thinking of going with Wagners.. anyone else have their preference?
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Join Date: Apr 2011
Location: Carrollton, GA
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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Join Date: Sep 2010
Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
The system won't recognize the new o2s right away. itll take some driving. That or you can flash the system. Drive around for like 50 miles and check
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Junior Member
Join Date: Jul 2011
Location: England shoeburyness Essex
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Year: 2001
Model: Cherokee
Engine: 2.5 turbo Diesel
wierd surge...
Hi guys,a few weeks ago i encountered a weird engine surge,id be traveling at 40mph or so and the RPMs would go up and down,and the autobox would change up and down to compensate for the speeds.I traced it to a vacuum pipe off the inlet manifold,and all was well.But now its back and i cant see any pipe off or broken,its causing my 2000 xj to run sick and its driving me nuts,is it most likely to be another leak?if so how can i trace it? or could it be something else causing the problem,weird thing is my truck was running sweet,pulled her into the workshop and a buddy and me put a RC 3" lift on now she runs sick..any ideas would be gratefully received....
1996 GC 4.0 missing and jumping out of od and lock up
I need some help; I have a 1996 GC 4.0. 180K mi. The problems started on a road trip pulling a trailer on a mild grade, suddenly and momentarily the engine quit and the transmission dropped out of OD and lock up and continued to do so intermittently for the rest of the trip, ( I held it in third for the rest of the grade and it ran fine) it may also go for several hundred miles without doing it. And then it just starts to miss and jump in and out of gear, it never completely stops running and it always starts, since then I have been replacing parts, as a mechanic with over twenty years of pulling on wrenches it’s something that I despise doing.
Here is a list of parts that I have replaced, header, it was cracked, fuel pump, sock and filter, wires ,plugs, cap and rotor, ignition coil Crank PS, rebuilt distributer with cam PS, and finally a rebuilt CPU. Most of these parts were due with 180K on the vehicle. The CPU was expensive and unwarranted.
I have also swapped around the relay for the ASD. One thing that’s driving me nuts is how intermittent this problem is. If it just died I could diagnose it. The vehicle is a dry country vehicle no corrosion.
Here are some things I have noticed; the tach stays stable during an episode, it does not do it when cold, only after about 15 to 20 mi of driving. It always starts in the morning or after being driven.
Trouble codes are for multiple misfires, all cylinders, I have also had codes for Cat efficiency and most recent, leak detection pump switch or mechanical failure.
I am under the understanding that OD and lock up are controlled by the ECU that senses engine speed via the Crank Ps True or false?
Thanks for your time and looking forward to your reply. 172Heavy
Oil psi is normal, and the trans was not overheated,( did a service on it immediately after I got home, the fluid was red and no debris in the pan) it jumps out of od and lock up at the moment the engine starts to miss, buck. The engine is a 4.0 inline six and runs very healthy. The missing is like the ignition is cycling on and off, it may do it for several miles and then back to normal, I can then stand on it and twist it tight through the gears, runs normal. I have seen plugged cats and baffles in mufflers that plug outlets restricting flow; they do not act like this.
Here is a list of parts that I have replaced, header, it was cracked, fuel pump, sock and filter, wires ,plugs, cap and rotor, ignition coil Crank PS, rebuilt distributer with cam PS, and finally a rebuilt CPU. Most of these parts were due with 180K on the vehicle. The CPU was expensive and unwarranted.
I have also swapped around the relay for the ASD. One thing that’s driving me nuts is how intermittent this problem is. If it just died I could diagnose it. The vehicle is a dry country vehicle no corrosion.
Here are some things I have noticed; the tach stays stable during an episode, it does not do it when cold, only after about 15 to 20 mi of driving. It always starts in the morning or after being driven.
Trouble codes are for multiple misfires, all cylinders, I have also had codes for Cat efficiency and most recent, leak detection pump switch or mechanical failure.
I am under the understanding that OD and lock up are controlled by the ECU that senses engine speed via the Crank Ps True or false?
Thanks for your time and looking forward to your reply. 172Heavy
Oil psi is normal, and the trans was not overheated,( did a service on it immediately after I got home, the fluid was red and no debris in the pan) it jumps out of od and lock up at the moment the engine starts to miss, buck. The engine is a 4.0 inline six and runs very healthy. The missing is like the ignition is cycling on and off, it may do it for several miles and then back to normal, I can then stand on it and twist it tight through the gears, runs normal. I have seen plugged cats and baffles in mufflers that plug outlets restricting flow; they do not act like this.
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Join Date: Aug 2012
Location: Bentonville, AR
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Year: 1990
Model: Cherokee
Engine: I6 4.0
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Year: 1998
Model: Cherokee
Engine: Rebuilt 4.0L I6
I used all 20 gallons. The speedometer is working right its about 2-5 mph off with 31s. Stock gear ratio for 4 speed automatic. 2 inch lift.