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Unread 06-30-2015, 01:51 PM   #1
LOIIIIIIIOJ
Registered User
1998 XJ Cherokee 
 
Join Date: Sep 2008
Location: UK
Posts: 95
Buying help for KJ

Hi,

owned an amazing XJ for 8 years 4.0 - has been bullet proof

gonna buy a KJ, but not sure if to get a 3.7 or 2.8CRD

gonna buy around 2006

any help on what to look for that goes wrong and what if i see i should walk away from.

also what are the common problems with the 3.7 and also the 2.8CRD

what engine would you buy if you were buying one

thanks

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Unread 06-30-2015, 06:27 PM   #2
megatone
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Join Date: Apr 2015
Location: Chico, California
Posts: 79
Common probs with the KJ's are the window regulators....they're garbage and always break.

Another problem is with the intermediate shaft assembly. Either the splines get chewed up, or the outer bearing support develops alot of slop. Or the assembly develops a really bad clunk sound. The intermediate shaft splines rust themselves to the cv shaft splines (passenger side).

3.7L PCV system allows excessive condensation to develop.......you can remove it but then gets gummed up and burns excessive oil (think 1qt per every 1,000 miles if you're lucky....sometimes as much as 1qt in 350 miles).

Clunking sound upon initial acceleration during stop-and-go traffic. Could be rear end suspension bushings or driveline related.

Front lower control arms have 3 bushings and one ball joint installed in them and if need to be replaced dealership cost for ONE of the control arm cost $400 bucks (not installed), no bull****!!! However each bushing is 30 bucks and the ball joint is about 50.....so $140, plus whatever an independent shop might charge for the 3 bushing installations. Not a bad price this way.

3.7L v6 Leaky passenger side valve cover. No biggie.

3.7L Hot under hood temperatures.

The Liberty in my family belongs to my 17 year old daughter. I paid.....$5,000 for it...???.....can't remember exactly, but in all honesty, I bought it used from an unattentive previous owner. My daughter is a country girl and has taken that Liberty of hers (The Jeep!!!) up into the mountains more times than I can count, and in all fairness, that damn Jeep has NEVER left her stranded crossing a running stream bed or left her stuck in rolling rocky terrain. I gotta say, a few weeks ago we went out on a camping/shooting trip. She took her Jeep, I took my Volkswagen Passat (Yay!). And once we left the maintained road, we continued in her Liberty for about an hour. The trail progressively getting more rugged. Was sandy at times, but mostly jagged rock (no mud). We got into a really dry valley with lots of sandstone on the valley floor as well as on the upward slopes. As my daughter was driving up the slopes getting to our camping/shooting location, I got kinda nervous because of the angles and the bouncing of the vehicle so I asked her if she wanted me to drive......she looks at me and says, "No dad, its fine. I just gotta get into 4 low and walk it up the slope".

I was like WTF!!!I woulda backed up and went home.
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Unread 07-07-2015, 09:46 AM   #3
libertyordeath8
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2003 KJ Liberty 
 
Join Date: Jan 2015
Location: bc, BC
Posts: 133
Lol! Cant wait for my kid to teach me how to wheel 8) we had a passat when i was a kid, german cars are the best.

One thing ive noticed but never solved is the hanging drop of ATF +4 forever suspended from the transfer case. Ive done everything except replace the gasket and never read a solution, but also never saw a drop on the pavement so if you see this dont worry.
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Unread 07-07-2015, 12:20 PM   #4
tommudd
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2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Moshi Tanzania, Ohio/Tanzania
Posts: 5,014
A lot of the above reports are only on a few
window regulators being junk??? Mine are all still stock with 216,000 miles and owning it 11 years
Intermediate shaft chewing up splines, again not an issue

etc
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Unread 07-07-2015, 12:31 PM   #5
libertyordeath8
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2003 KJ Liberty 
 
Join Date: Jan 2015
Location: bc, BC
Posts: 133
Ya mine are fine too, over 240k on the body
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Unread 07-07-2015, 05:43 PM   #6
TangoTango
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2008 WK 
 
Join Date: Oct 2011
Posts: 1,612
I just got one.. and others pointed out these things..

The 3.7 is a way better engine and easier to get parts.

The bushings on the rear "v" there are (3) of them.. they are usually gone out. They are easy to replace.



The front lower ball joints are usually gone out.

The window regulators as mentioned above.. they just break, so really test the windows.. mine broke minutes after purchase.

The a/c leaks all over the passenger floor (under the carpet you need to look under the carpet) unless a 90 degree down spout has been added to the tube in the engine bay.

Other than that the usual car things to check.


and thanks goes to the others that pointed these things out to me.
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Unread 07-07-2015, 09:54 PM   #7
libertyordeath8
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2003 KJ Liberty 
 
Join Date: Jan 2015
Location: bc, BC
Posts: 133
Congratulations!! Your next happiest day will be when you.lift it up, i promise you!!
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Unread 07-08-2015, 06:50 AM   #8
tommudd
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2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Moshi Tanzania, Ohio/Tanzania
Posts: 5,014
Quote:
Originally Posted by TangoTango View Post
I just got one.. and others pointed out these things..

The 3.7 is a way better engine and easier to get parts.

The bushings on the rear "v" there are (3) of them.. they are usually gone out. They are easy to replace.



The front lower ball joints are usually gone out.

The window regulators as mentioned above.. they just break, so really test the windows.. mine broke minutes after purchase.

The a/c leaks all over the passenger floor (under the carpet you need to look under the carpet) unless a 90 degree down spout has been added to the tube in the engine bay.

Other than that the usual car things to check.


and thanks goes to the others that pointed these things out to me.
Best is to replace the whole tri-link with a Mopar unit
Front ball joints are a wear item, they wear out, not a big deal and happen on all vehicles
You do not have to add a down spout on the AC they come from the factory with it attached
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Unread 07-08-2015, 03:07 PM   #9
libertyordeath8
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2003 KJ Liberty 
 
Join Date: Jan 2015
Location: bc, BC
Posts: 133
Quote:
Originally Posted by TangoTango View Post
I just got one.. and others pointed out these things..

The 3.7 is a way better engine and easier to get parts.

The bushings on the rear "v" there are (3) of them.. they are usually gone out. They are easy to replace.

The front lower ball joints are usually gone out.

The window regulators as mentioned above.. they just break, so really test the windows.. mine broke minutes after purchase.

The a/c leaks all over the passenger floor (under the carpet you need to look under the carpet) unless a 90 degree down spout has been added to the tube in the engine bay.

Other than that the usual car things to check.

and thanks goes to the others that pointed these things out to me.
Oops, haha i thought you were the original poster, theres me always goin off half cocked. Sorry! Lol
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Unread 07-08-2015, 06:00 PM   #10
twowings
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2004 KJ Liberty 
 
Join Date: Nov 2014
Location: Tulsa, OK
Posts: 62
You'll want to give us all the details of the good deals you find FIRST so we can um, evaluate them for value....
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Unread 07-08-2015, 09:40 PM   #11
pentastarguy
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2012 JK Wrangler 
 
Join Date: Dec 2011
Location: sussex, new jersey
Posts: 8,678
dont know about the UK, but the gasser would be easier to maintain and repair.
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Unread 07-15-2015, 01:59 PM   #12
300cpilot
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1995 XJ Cherokee 
 
Join Date: Feb 2015
Location: Meridian, Id
Posts: 370
Window regulators have been mentioned, replaced my 3rd one to break in three years. 133,000 miles on a 2007.

I have also had a case where I repaired a 3.7 in a 2004 that 4 of the valve push rods came out and the 4 valves had gotten stuck in the guides. All of this was because of a failed head gasket that allowed water into the oil. If you take a paper towel and wipe the inside of the filler tube. If it comes out with clumps of chocolate brown gunk, your the lucky owner of a blown head gasket to. Not sure how common blown head gaskets are with these. That one cost a lot.

Also had issues with the ABS on the right rear, seams like the sensor gets messed up every year and it will trigger the abs.

Other than those issues it has been one of the best vehicles we have ever owned.
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