2002 short box rebuild questions - JeepForum.com

 
LinkBack Thread Tools
post #1 of 2 Old 11-27-2007, 11:38 PM Thread Starter
aber16
Registered User
2002 KJ Liberty 
 
Join Date: Nov 2007
Location: BC, Canada
Posts: 3
2002 short box rebuild questions

Hi, the liberty I bought with 56000Km ended up having piston slap and under warranty the dealer replaced the entire short box. Before the rebuild I was getting approximately 100km on 16L in the city, but since the rebuild it has nosedived to 21L. I know that fuel economy usually is bad following a rebuild until the engine gets worn in but i have since put on 5000 km.

Does anyone have any advice for me? I know jeeps aren't great on fuel, but I really think this is outside the normal limits. Also, I have to drive very carefully to squeeze that fuel economy out - no speedy accelerations, speeding, etc.

At first i thought it could be tires - I do have an aggressive BFGoodrich all terrain tire on. Do tires make that much difference, most people say no. Besides, same tires before the rebuild and resulting decrease in fuel economy. HELP, PLEASE!

aber16 is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 11-28-2007, 02:15 AM
Trouble Maker
reckless endangerer
 
Trouble Maker's Avatar
1993 ZJ 
 
Join Date: Jan 2006
Location: Lloydminster, SK Canada
Posts: 751
The term is "short block" not short box, meaning basically the engine block, crank and pistons.

Metric sucks! Not sure why your mileage dropped from 15 mpg US to 11 mpg US though.

Russ
02 Dakota Quad Cab 4.7 5 spd

93 ZJ Stolen and wrecked Mar29/08
Trouble Maker is offline  
Reply

Quick Reply
Message:
Options

Register Now



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

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

Password:


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



Email Address:
OR

Log-in









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
2002 4.0 swap to 2004 4.0 questions dcoplan Engines & Drivetrain 2 07-30-2008 05:42 AM
Going to start a rebuild project...have questions! Wish Engines & Drivetrain 5 03-10-2008 03:56 PM
Chrysler 2002+ radio TO 1998-2002 vehicle AngryDog Stereos, CB & Ham Radios & GPS & Electrical. 1 03-19-2006 01:08 PM
2.5 rebuild questions LilViper95 Engines & Drivetrain 1 10-13-2003 08:13 AM
4.2 Carb Rebuild Questions Spalding Engines & Drivetrain 1 10-11-2001 06:07 PM

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