HELP!! Only stays running when on the gas - Jeep Wrangler Forum
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 07-08-2008, 09:33 AM   #1
Newb
 
Join Date: Jul 2008
Posts: 1
HELP!! Only stays running when on the gas

My 1997 Jeep will turn over but only stays running with foot on the gas. As soon as I take my foot off the gas it dies. Any help? My friend says it's the throttle position sensor?

mcycjah is offline   Quote
Old 07-08-2008, 09:55 AM   #2
Jeeper
 
jeepcop1's Avatar
 
Join Date: Jul 2008
Location: Waynesboro
Posts: 87
When the TPS ran out in my 97 that was about what it did. It would only run with the pedal down and even then seemed like it didn't know what it was doing. They don't cost too much and are an easy fix, just 2 screws and your ready to rock!

__________________
"Malfunction is the mother of modification"
'01 TJ Sport
2" Teraflex BB
FourReal front and rear bumpers
Warn 9500ti
KC Windsheild light mounts w/ lights (lights aren't KC)
Headlight and Taillight guards
jeepcop1 is offline   Quote
Old 07-08-2008, 10:54 AM   #3
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 33,781
Images: 2
More likely it's simply a dirty IAC (idle air controller). The IAC provides all the air to the engine when your foot is not on the accelerator pedal so your symptom points to that. The IAC is bolted onto the throttle body with two small torx screws, on the passenger-side of the throttle body, closest to the valve cover. Remove it, gently clean its solenoid actuated plunger (don't push/pull/turn the plunger) with throttle body cleaner and a rag/brush, then clean the hole in the throttle body its plunger fits into. Once it's clean, use the remainder of the can of throttle body cleaner to clean the interior of the throttle body per the instructions on the can.

There is no need to remove the throttle body from the engine to do any of this. Good luck.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote
Old 07-08-2008, 11:20 AM   #4
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 33,781
Images: 2
Incidentally, that symptom can also be caused by a defective throttle position sensor as described by JeepCop1 but it only costs $5 to first clean the IAC. If that doesn't do it, then it's off to the parts store for a new TPS since it can't be cleaned like the IAC can.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   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
What size gears are you running GoodLife TJ General Discussion Forum 67 06-29-2012 05:08 PM
'94 YJ 2.5L Running Like Poo... Tony YJ Tech Forum 4 10-22-2008 01:13 PM
Who's running 10" rims instead of 8"? cavediverjc TJ General Discussion Forum 10 07-14-2007 03:36 AM
YJ with bad idle and rough running erickpl YJ Tech Forum 3 06-22-2007 09:24 AM
running a marathon for the leukemia and lymphoma society save_alkaline Off-Topic 4 02-10-2007 11:26 AM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:21 PM.



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