KJ engine rebuild? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Liberty Forums > KJ Liberty Forum > KJ engine rebuild?

FS: Wrangler RGB Multicolor Fog Light LEDs: Awesome EffectJKS Now Available at www.baseline4x4.com, Trackbars, SkidsFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye Kit

Reply
Unread 06-13-2013, 08:57 AM   #1
Adam013085
Registered User
 
Join Date: Mar 2010
Location: Carbondale, IL, Murphysboro, IL
Posts: 1,143
KJ engine rebuild?

I have a coworker who bout an 02 KJ about 8 months ago and the engine has blown in it. It has 156k miles on it and is the 3.7 liter engine. Her mechanic told her these engines are notorious for blowing well before the 156k mile mark. I am unfamiliar with KJs, but I have owned an XJ, TJ, and CJ myself without any major issues. Is the 3.7 liter engine prone to problems? I know 156k is quite a bit of miles. This is more for curiosity sake than anything else.

Adam013085 is offline   Reply With Quote
Unread 06-13-2013, 09:27 AM   #2
tommudd
Registered User
2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Moshi Tanzania, Ohio/Tanzania
Posts: 4,193
Few of them have issues with valves but for as many that are out there it's not a real problem.
Many of us have way more miles than you mention and no issues , some even in to the 300-35,000 mile range. Have a buddy with an 03 and 212,000, my 04 has 186,000 uses no oil, runs as smooth today as it did when I bought it new
Regular maintenance and just getting them out and running them is the key to keeping them going.
__________________
04 Liberty, Kilimanjaro Edition, Rock Lizard RockRails/Roof Rack/Front-Rear bumper,32 inch Goodyear Duratracs,Moabs,4.10s/ 4.25 inch JBA Coilover lift /other goodies
tommudd is offline   Reply With Quote
Unread 06-13-2013, 09:30 AM   #3
Adam013085
Registered User
 
Join Date: Mar 2010
Location: Carbondale, IL, Murphysboro, IL
Posts: 1,143
That was my impression too but she was told these engines tend to give out around 100-120k miles. Thanks for the input!
Adam013085 is offline   Reply With Quote
Unread 06-13-2013, 09:35 AM   #4
tommudd
Registered User
2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Moshi Tanzania, Ohio/Tanzania
Posts: 4,193
There are way more running at say over 175,000 than there are that gave up at 100,000 I'd say
Of course you never hear much from the people who just keep them maintained and running mile after mile. You only hear from the ones whose didn't
__________________
04 Liberty, Kilimanjaro Edition, Rock Lizard RockRails/Roof Rack/Front-Rear bumper,32 inch Goodyear Duratracs,Moabs,4.10s/ 4.25 inch JBA Coilover lift /other goodies
tommudd is offline   Reply With Quote
Unread 06-13-2013, 09:39 AM   #5
Adam013085
Registered User
 
Join Date: Mar 2010
Location: Carbondale, IL, Murphysboro, IL
Posts: 1,143
Agreed! Maintenance plays a huge part!
Adam013085 is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.