Off-Road Forums offers a place for off road enthusiasts to chat about everything from ATVs, jeeps, 4x4 trucks and dirtbikes, to racing, snowmobiles or just general off road stuff.

ADVERTISEMENT

Sponsored Links

Go Back   Off-Road Forums & Discussion Groups > Jeep > Jeep-Mid-Sized
High and Low Idel High and Low Idel
Register FAQ Social Groups Calendar Search Today's Posts Mark Forums Read

Jeep-Mid-Sized All discussion of mid-sized Jeeps: Cherokee, Grand Cherokee

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-24-2008, 04:19 PM
Y OWN 4 N #2
Guest
  
Posts: n/a
Default High and Low Idel
90 Jeep Cherokee Limited 4X4, it idels fine for a muinte then it goes to 1200 to 1500 RPM and it may stay there after warm up or come back down. I've done replace the stepper motor, Air sensor, MAP sensor, and unplug the coolent sensor and none of this has helped. My next step is the ECU.

Does any body have an idea what it may be???
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #2  
Old 11-25-2008, 08:48 AM
NIX's Avatar
NIX NIX is offline
Keyboard Implanted
  
Join Date: Mar 2003
Location: Holland
Posts: 2,743
NIX is an unknown quantity at this point
Default
Did you clean the throttle body? Is the O2 sensor still OK?

Could be the ECU, but mostly it a bad connector or groundstrap. Check them also. Also check if the TPS is adjusted well, just to rule it out.

It could also be false air. Spray some WD40 on and around the TB when the rpm rises.
__________________
HJ

If in doubt, add a bit more

Jamboree '94 stock 4.0 AX15 8.25
Cherokee Pioneer '88 i6 2-door 5 speed mostly stock put asleep
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3  
Old 11-28-2008, 05:33 PM
Aprentice
  
Join Date: Oct 2008
Location: near Seattle
Posts: 95
carnuck is on a distinguished road
Default
Loose manifold? Bad brake booster?
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

« Previous Thread | Next Thread »
Thread Tools
Display Modes
Linear Mode Linear Mode

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 On
Pingbacks are On
Refbacks are On




Sponsored Links
Off-Road Videos -
Check out over ten years of extreme 4x4 action, product testing and the Off Road Nation at play. Baja racing to rock crawling, ATVs in the sand to motorcycles in the dirt, it's all here. Rate them, share them and upload your own.
ATV Reviews -
Honda, Suzuki, Yamaha, Polaris, Kawasaki, Can-Am. First rides to long-term tests, check out the latest in ATVs, UTVs and Side-by-Side vehicles of every make and model. Read expert opinions and follow custom project vehicles.
Axxxtion Sports.....
Axxxtion Sports is heating things up with their 2010 Winter Heat snowmobile calendar! Simply Sexy!

All times are GMT -5. The time now is 03:34 PM.

Contact Us - Off-Road.com - Archive - Privacy Statement - Top

Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.1.0
Copyright ©1994-2009, Advanstar Communications Inc. // Off Road forums & discussion groups sitemap
side by side | atv | dirtbike | snowmobile | sandsport | competition | land use | Jeep | Toyota | Ford | GM