TJ mileage, 4.0L -
LinkBack Thread Tools
post #1 of 6 Old 06-06-2010, 05:46 AM Thread Starter
Registered User
2010 JK Wrangler 
Join Date: May 2007
Location: Upstate NY
Posts: 638
TJ mileage, 4.0L

Looking at some TJs, all with the 4.0L and Im curious at what point should i become nervous about the miles on them, the 3 Im looking at have between 99,000 to 119,000 miles, the one i really like has 103,000 miles. From what i read 100,000 is no big deal for a 4.0L, is this a safe assumption? I know it all hinges on how the last person maintained it, but i have no way of knowing that, all three vehicles are at dealers. Thank you,

monkers is offline  
Sponsored Links
post #2 of 6 Old 06-06-2010, 06:13 AM
Made in the USA
TheBoogieman's Avatar
2003 TJ Wrangler 
Join Date: Aug 2006
Location: CharlottesHELL
Posts: 35,598
200,000 and up.Look underneath them to see if they were beat up offroad.I sold my first Jeep with 196,000 miles on it and I never had a problem with it.My neighbor still drives it and loves it.
TheBoogieman is offline  
post #3 of 6 Old 06-06-2010, 06:42 AM
Registered User
2012 JK Wrangler 
Join Date: Sep 2009
Location: pittsburgh
Posts: 337
Id be more worried about the frame rusting out than the motor going bad . When I was looking for jeeps I found 2 that looked great and had low miles then I climbed under them and saw the frames where about shot ! 1 was rusted thru behind the rear wheel . Like boogie said get under it and give it a good look over check everything and even poke around the frame if it looks rust bad or you see any holes in it walk there are pleanty of good ones out there. remember theres an a$$ hole for every seat ! dont be one
cidd is offline  
post #4 of 6 Old 06-06-2010, 06:59 AM
Registered User
2003 TJ Wrangler 
Join Date: May 2009
Location: The Republic of Dave
Posts: 6,408
I just bought one with 87,000 on it and the engine looks as good as the day it came out of the factory. It all has to do with maintenance. A good, thorough look-over should reveal any problems. You know what you're looking for, but here's some advice: take a mechanically-savvy buddy with you that has no vested interest in you buying any particular Jeep. Two sets of eyes are better than one, and your friend won't be suffering the excitement that gets people when they're buying a new they're going to catch more than you will, guaranteed. If the Jeep passes inspection, don't worry about the mileage.

About the miles: A friend of mine (same one that went with me to look over my newest Jeep) and I had jobs back in high school, working for an off-road shop, tearing down AMC 4.2's and 4.0's...I can promise you that maintenance makes a difference. You could tell which engines had been neglected, because they had seventy or eighty thousand miles on them and they were trashed. Also, you could look at engines that came from wrecked vehicles that had three or four hundred thousand miles on them, and were in excellent shape. It's all about how it's been maintained.

If it's worth doing, then it's worth overdoing.

The Republic of Dave: Bringing you the finest in simian testing supplies.

The build, the gear, and the mileage:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Sundowner is offline  
post #5 of 6 Old 06-06-2010, 07:55 AM
Erik T.
Registered User
Erik T.'s Avatar
2001 TJ Wrangler 
Join Date: Feb 2006
Posts: 2,773
As said above, rust is more important than mileage. TJ's are getting old, but not as old as Cherokees :P

200k off a well maintained Inline Six(4.0 liter) is easy to get.


Originally Posted by mrblaine View Post
Hack work? :rofl: You just described half the modified jeeps on this board.
Erik T. is offline  
post #6 of 6 Old 06-06-2010, 08:03 AM
kevin A Whitler
Registered User
1995 YJ Wrangler 
Join Date: Aug 2005
Location: South Carolina
Posts: 99
Your in NY, rust, rust, rust.....Look for a jeep from a southern state if you can...

Motor will last longer than the frame where you are at.

I have 216,000 miles on my original motor.
kevin A Whitler is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Vibration, Bad Mileage, Very Bad Mileage Harley_Jeep_Man TJ Wrangler Technical Forum 10 09-04-2010 06:55 PM
Gas Mileage jeep1421 TJ Wrangler Technical Forum 26 07-18-2006 02:54 PM
Gas mileage dgerryjr YJ Wrangler Technical Forum 19 07-12-2006 08:34 AM
Bad Gas Mileage, Please help. joetrejo TJ Wrangler Technical Forum 11 07-01-2006 07:42 AM
Gas Mileage twinjeep97 TJ Wrangler Technical Forum 18 06-29-2006 09:01 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome