Check engine code 43... - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ 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 09-16-2010, 02:30 PM   #1
Newb
 
Join Date: Aug 2010
Location: Charlotte, NC
Posts: 1
Check engine code 43...

So I have a 1997 Jeep wrangler 4.0L Sahara.. It has 71,500 miles on it.. i've only had it since June 10th of this year.. Ive only put 4000 miles on it since i got it. I got in it today started her up and I could hear a slight backfire when i gave it gas. The Jeep drove fine the whole time, for about 50 mile round trip. half way back the check engine light began to flash and the stay on.. I was on the highway going 65-80 with no problems.. but at lights startup was sorta sluggish and maintaining speed was more difficult then normal as well.. I just had the oil changed about 2000 miles ago. Im not sure what other work was done to it prior to my buying the car, but as far as visuals go its stock, but it does have a transmission oil cooler.. can some one please help me!!!! Thanks

Erick

Ez'sJeep is offline   Quote
Old 09-16-2010, 02:35 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 37,297
A 43 (misfire) code in a '97 or '98 TJ is generally going to be caused by a bad batch of valve springs some 4.0L engines got in those years. Replacing the spark plugs, rotor, distributor cap, fuel injectors, etc. won't help.

The only way to fix that problem is with a fresh set of valve springs and, possibly, a valve job too since the weak valve springs will eventually burn the valves or valve seats too. Jeep has a TSB (technical service bulletin) for this issue which basically just says to replace the springs. A TSB isn't free to have done by the dealer, it's not the same as a Recall which is free due to it being safety related.

And welcome to WF!

__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote
Old 09-16-2010, 03:46 PM   #3
Jeeper
 
Join Date: Sep 2010
Posts: 315
Jerry, I have to ask, Does it feel good to be right all the time ? (J/K)
PS: Just got my springs in today, will do a swap this weekend. THANKS Jerry !
XtrmTJ is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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
check engine light gamecock22 TJ General Discussion Forum 22 01-12-2015 07:20 PM
Check engine light w/ error code P0441, anyone??? DontTellMeAboutCajun TJ Tech Forum 12 01-22-2013 11:49 PM
Check Engine Light AbbyK9 TJ Tech Forum 3 04-21-2010 09:32 AM
Check engine light FrankTheTank TJ Tech Forum 10 04-15-2010 11:01 PM
check engine light on and then off again jasonbwell TJ Tech Forum 5 03-24-2010 10:11 PM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 01:03 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

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