2004 California TJ idle speed fluctuates - JeepForum.com

 
LinkBack Thread Tools
post #1 of 3 Old 01-28-2011, 04:46 PM Thread Starter
hobigusn
Registered User
2004 TJ Wrangler 
 
Join Date: Sep 2010
Location: Sterling Heights
Posts: 26
2004 California TJ idle speed fluctuates

My 2004 tj has an intermittent problem. At idle the rpm fluctuates. It will drop to 1 1/4 dot on the tach (400-450rpm I think). It will stay that low until you tap the gas. Idle speed goes to about normal rpm but flucuates by a needle width. I've been chasing this problem for awhile. I found a piece of metal (wire rope strand about 1 inch long) stuck to my crankshaft sensor. I remove it and replaced the sensor because I already bought one. Before changing Crankshaft sensor the jeep would stall in stop and go traffic. Now it doesn't stall but it doesn't have a smooth or steady idle. I've done a tune up, camshaft sensor, speed sensor, idle air controll module, map sensor, throttle postion sensor and up stream O2 sensors. Any idles?

hobigusn is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 01-28-2011, 05:02 PM
GOLENJEEPTJ
Running Secretly Amok!
 
GOLENJEEPTJ's Avatar
2002 TJ Wrangler 
 
Join Date: May 2007
Location: Ventura ,CA.
Posts: 9,714
When you replace all of those items did you give the throttle body a good cleaning?I mean like taking it off the intake manifold?Check all you vacuum hoses and fittings for looseness,cracking,etc.
GOLENJEEPTJ is offline  
post #3 of 3 Old 01-28-2011, 05:17 PM Thread Starter
hobigusn
Registered User
2004 TJ Wrangler 
 
Join Date: Sep 2010
Location: Sterling Heights
Posts: 26
Quote:
Originally Posted by GOLENJEEPTJ View Post
When you replace all of those items did you give the throttle body a good cleaning?I mean like taking it off the intake manifold?Check all you vacuum hoses and fittings for looseness,cracking,etc.
I cleaned the throttle body really good. But idk about the vacuum hoses. Where are they and what are they attached to? I did't think fuel injection had vacuum hoses.
hobigusn 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
2004 Rubicon 5 speed wont go into gear when running oif03vet TJ Wrangler Technical Forum 11 11-01-2010 07:32 PM
2004 Rubicon highway speed runs badly Armymitch TJ Wrangler Technical Forum 14 08-11-2010 07:14 AM
2004 TJ 4.0 5mt off idle hesitation iamadam1122 TJ Wrangler Technical Forum 1 06-16-2009 04:38 PM
2004 TJ - Low Idle Speed JFiorentino TJ Wrangler Technical Forum 1 02-25-2007 05:18 PM
****! I drove to California and on the way my 6-speed went to crap... JeepinYahoo TJ Wrangler Technical Forum 17 06-12-2006 12:19 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