Jeep 4.7L low idle in drive stopped at light -
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 > General Technical Discussions > Engines & Drivetrain > Jeep 4.7L low idle in drive stopped at light

FS: Wranger BRIGHT License Plate LED! Just $3! Great valueIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed LineFS: Jeep Fog Light LED Bulbs! Several Brightness Options!

Unread 04-24-2012, 05:21 PM   #1
Registered User
1999 WJ 
Join Date: Apr 2012
Location: Altoona, Pennsylvania
Posts: 4
Jeep 4.7L low idle in drive stopped at light

Hello Jeepsters my 99 grand cherokee limited when at operating temperature stopped in drive the idle goes from 750rpm to 400rpm or lower like its going to stall. Tried this in reverse and the rpm stays at 750. Replaced fuel filter, AIC motor, cleaned throttle body, oem spark plugs. Put on snapon computer, misfire #6 so I replaced coil. No more misfires, still the same problem. Could not find no more bad readings. Maybe the TPC? Any suggestions!!! Thanks

shawnsbruno is offline   Reply With Quote Quick reply to this message

4.7 liter , rough idle , rpm , stalling at stop

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.

Thread Tools

Suggested Threads

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