enigne misfire help 4.2 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-07-2012, 07:16 PM   #1
Jeeper
 
Wamooney's Avatar
 
Join Date: Jan 2012
Location: massachusetts
Posts: 18
enigne misfire help 4.2

i have an 89 with a 4.2 and i have done everything i can think of to fix it and it is running good but its misfire. on one of the cylinders it has a misfire but there is no computer to tell me the error code. how do i find which cylinder is misfiring?

Wamooney is offline   Quote Quick Reply
Old 03-07-2012, 07:28 PM   #2
Newb
 
Join Date: Mar 2012
Posts: 6
Start up the engine and with a insulated pair of pliers pull a sparks wire off one at a time then put it back till you find the right one the wrong one will make worst the one will make no change.

Wanderer1960 is offline   Quote Quick Reply
Old 03-07-2012, 10:14 PM   #3
Jeeper
 
Master4th's Avatar
 
Join Date: Mar 2012
Posts: 341
One thing I love about these Jeeps is there isn't a lot of stuff to run down when solving a problem.

The post above hits it right on the head, determine the cylinder, after that it can only be Wire, Plug, or low cylinder compression. 89 was Carburated I think, so fuel wouldn't be an issue.
Master4th is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

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.



Thread Tools

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I need some help! johnsonb1400 General Jeep Discussion 3 01-04-2013 04:21 PM
E-Auto Bumpers???? HELP gmcnutt13 YJ Tech Forum 16 03-10-2012 10:54 AM
what do i need to change from serpentine to v belts?4.2 csb41502 YJ Tech Forum 10 03-08-2012 08:08 AM
4" Lift Help R-cman TJ General Discussion Forum 0 03-07-2012 01:31 PM
Stock jk wheel and tire question, please help cph2579 JK General Discussion Forum 4 03-07-2012 11:48 AM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 11:45 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC