Idle Problem - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > Idle Problem

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineOld Man Emu WK Lift - Black Friday Special!!The Original 3/8" Ruffstuff Diff Cover!

Reply
Unread 09-16-2003, 10:04 PM   #1
Trainer
Registered User
 
Join Date: Aug 2003
Location: Houston, TX
Posts: 23
Idle Problem

Need some help here...

I have an eratic idle problem, sometimes my Jeep will just decide to idle up to approx. 1500 or 1600 rpm. If I shut off the engine the idle drops back to normal, but if I dont it stays there...

No engine lights or anything abnormal.

Any suggestions???

Thanks
JP

__________________
'05 Rubicon
Trainer is offline   Reply With Quote Quick reply to this message
Unread 09-17-2003, 06:20 AM   #2
BamaJeeper
Registered User
 
Join Date: Jan 2003
Location: Alabama
Posts: 1,468
Check the self diagnostic codes. Sounds like it could be AIS (Automatic Idle Speed) controller.
__________________
Out of the darkness comes light.
BamaJeeper is offline   Reply With Quote Quick reply to this message
Unread 09-17-2003, 11:25 PM   #3
RockPaws
Registered User
 
Join Date: Jun 2003
Location: Pahrump, NV
Posts: 830
Yes check the codes. That can be caused by a air idle solonoid or throttle position sensor...usually.
__________________
[FONT=Trebuchet MS]01' Jeep TJ (Jeep #5)
3.5 RE Custom SuperFlex, Raingler, Kilby, Currie, Banks, Borla, American Racing, Custom mods, Always more in the works.
[URL=http://www.redrock4x4.com][COLOR=Blue]www.redrock4x4.com Rocks![/COLOR][/URL]
[URL=www.needhim.org/][COLOR=Blue]Need Him?[/COLOR][/URL][/FONT]
RockPaws is offline   Reply With Quote Quick reply to this message
Unread 09-18-2003, 02:50 PM   #4
LoOpY
Registered User
 
Join Date: Apr 2002
Location: Green Bay, WI
Posts: 888
the IAC usually doesnt fail, its usually one of the sensors that gives input to the ECM that controls the IAC. MAP, TPS, ECT are gonna be the main ones. A vacuum leak is also a slight possibility. However, like previously stated, my money is on TPS
LoOpY is offline   Reply With Quote Quick reply to this message
Unread 09-19-2003, 06:25 PM   #5
Trainer
Registered User
 
Join Date: Aug 2003
Location: Houston, TX
Posts: 23
Checked today, no codes...
how do I find out if its the TPS???

Thanks
JP
__________________
'05 Rubicon
Trainer is offline   Reply With Quote Quick reply to this message
Unread 09-20-2003, 12:14 AM   #6
BamaJeeper
Registered User
 
Join Date: Jan 2003
Location: Alabama
Posts: 1,468
The common problem with the AIS is that carbon will build up on the cone and cone seat causing erratic idle problems.
__________________
Out of the darkness comes light.
BamaJeeper is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.