88 Cherokee random skipping/high idle - 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 > Models > Jeep Cherokee & Comanche Forums > XJ Cherokee Technical Forum > 88 Cherokee random skipping/high idle

Rough Country Jeep Suspension Deals at Rockridge 4WD!G2 Disc Brake Conversion Kit for Jeep Wrangler YJ TJ LJ ChIron Cross Customer JK and TJ Wrangler Bumpers now at ROCK

Reply
Unread 07-12-2013, 06:01 AM   #1
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
88 Cherokee random skipping/high idle

Need help. 88 XJ we have cleaned the throttle body, replaced the TPS, new plugs, wires, distributor cap and rotor, and new fuel filter. It seems that after driving 15 minutes or so it will start random skipping. Tonight we drove over
town pushed in clutch got a high rpm the only thing that seemed to bring down Rpm was Turing the a/c on. Got to destination. Idle was normal. Drove home started out good. Little way down the road random skipping again.

Any ideas what to do next?

88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 06:41 AM   #2
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
Did you adjust the new tPS?
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 12:23 PM   #3
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
Yes we printed off the instructions and followed that. Thanks.
88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 03:56 PM   #4
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
Quote:
Originally Posted by 88jeepw View Post
Yes we printed off the instructions and followed that. Thanks.
Did you check it on the flat 3 wire connector or the square 4 wire connector? Did you do the sensor ground test beforehand?
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 05:49 PM   #5
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
We did the test on the 3 wire connector and he did do ground test. Thanks for your help. All help is appreciated.
88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 06:32 PM   #6
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
Define "skipping".
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 06:57 PM   #7
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
You can be going along fine and all of a sudden it will skip (misfire). An occasional miss when not in a pull.
88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 08:00 PM   #8
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
Like a total cutout? Not just a single cylinder miss?

You have an 88. Ever do the C101 cleaning or ground refreshing and connector refreshing?

If not, click on the link below and see posts 1,2,3, and 4.

http://www.cherokeeforum.com/f51/cru...x-tips-153657/
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 08:09 PM   #9
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
Not really a total cut out. Tonight we plugged the EGR valve drove for about 30 minutes or so no problem. Will drive it more tomorrow. Also will look at the grounds. Thank you so much for your help. Will try these things and repost.
88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 08:11 PM   #10
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
How did you plug the EGR? Just the vacuum line?
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 08:29 PM   #11
88jeepw
Registered User
1988 XJ Cherokee 
 
Join Date: Nov 2012
Location: Alton, VA
Posts: 7
Quote:
Originally Posted by cruiser54
How did you plug the EGR? Just the vacuum line?
Yes just the vacuum.
88jeepw is offline   Reply With Quote Quick reply to this message
Unread 07-12-2013, 09:13 PM   #12
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,234
Quote:
Originally Posted by 88jeepw View Post
Yes just the vacuum.
See how that works. In the meantime, REFRESH the grounds. Don't just look at tehm. The other procedures can reap benefits as well. Eliminate known issues.
__________________
Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
cruiser54 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






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.