Idling issues after dead battery -
LinkBack Thread Tools
post #1 of 3 Old 01-25-2010, 09:24 AM Thread Starter
Registered User
2002 TJ Wrangler 
Join Date: Aug 2009
Location: Bakersfield Ca.
Posts: 30
Idling issues after dead battery

I had a dead battery a month or so ago and had to jump start my rig and after it ran for a few minutes it would'nt idle. I rev it up and it would run fine but soon as i let off the gas and it came to a idle it would die. I unhooked the positive side terminal off the battery for a few seconds hooked it back up, started it and everything seems to be fine. It idles like normal now. Just yesterday the battery was dead again and same thing happend again. Is this normal and you have to unhook the battery to maybe reset everything or what??

Iamjr is offline  
Sponsored Links
post #2 of 3 Old 01-25-2010, 09:47 AM
Registered User
1997 TJ Wrangler 
Join Date: Dec 2009
Location: va
Posts: 56
when the battery dies or you disconnect your battery for a amount of time the eec reverts back to its factory settings. it needs a short time to relearn.

i would clean your throttle body and iac. when the eec resets it needs the time to relearn your dirty idle air controller. factory settings assume clean iac and thats why you get the bad idle till it relearns.
jurob is offline  
post #3 of 3 Old 01-25-2010, 10:20 AM
Jerry Bransford
Jerry Bransford's Avatar
2004 TJ Wrangler 
Join Date: Jan 2003
Location: Escondido, California
Posts: 68,904
My bet is on your battery being so dead or nearly dead that it's not putting out enough power to provide the alternator its required +12v exciter voltage. The alternator uses 12v from the battery to power its circuitry inside, at least on the type of alternator used in our Wranglers.

Like if you entirely removed the battery while the engine was running, which you should not do, the engine will eventually die. A good charged up battery is required for the engine to run properly.

When you have a choice, buy American made.
Jerry Bransford is online now  

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
battery dead ....argh... dual battery setup???? asjeep TJ Wrangler Technical Forum 21 07-20-2009 05:46 AM
Dead battery chainsaw620 TJ Wrangler Technical Forum 5 06-22-2009 05:24 PM
4.0 idling issues WVjeep94 YJ Wrangler Technical Forum 13 01-23-2009 02:09 PM
Weber Idling Issues hguffman YJ Wrangler Technical Forum 2 01-20-2005 12:03 PM
Idling issues jsandmel YJ Wrangler Technical Forum 3 10-07-2004 03:47 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