98 ZJ Problem, Power Issues? - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - ZJ

Join Jeep Garage Today
Thread Tools Display Modes
Old 10-13-2010, 07:41 PM
New Member
Join Date: Oct 2010
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Tubbs540 is on a distinguished road
98 ZJ Problem, Power Issues?

Well my 98 ZJ with 150k on it started doing weird things. So from time to time when i pull up to a stop sign or lights and i keep it in gear, the idle starts going crazy and acting like its going to die... Then when i try and go, it acts like it doesn't have any power and kind of clunks along. So normally i put it in neutral let the engine get back to normaly (couple seconds), make sure that it revs okay, and then put it back in gear and it goes again like normal.. Not really sure what the problem is. I tried replacing the spark plugs and that didn't really do much. The motor never actually dies during this though. So every time that i pull up to stop now im just throwing it into neutral. Any suggestions of what it could be? Oh and its the 4.0 straight 6 and its in 2wd when it does this.

Reply With Quote
Sponsored Links
Old 12-22-2010, 05:53 AM
My Jeep: 1998 5.9L ZJ
Join Date: Dec 2010
Location: 5 miles fr bristol speedway
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2376
jimmy vegas is on a distinguished road
Re: 98 ZJ Problem, Power Issues?

probaly wont help but have you tried to unhook batt for about an hour to re program ecu back to stock ,,probaly not the prob but its free and ive seen it fix some wierd problems before also this will get rid of check eng lights and so on ,,,good luck man,
Reply With Quote
Old 12-22-2010, 09:08 PM
1 GRAND's Avatar
Join Date: Jul 2009
Location: Elkhorn City, Kentucky
Posts: 748
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 3623
1 GRAND has a reputation beyond repute1 GRAND has a reputation beyond repute
Re: 98 ZJ Problem, Power Issues?

Throttle position sensor?

2007 Jeep Grand Cherokee Overland Hemi QD II

2006 Jeep Commander 65th Anniversary 3.7 4x4

1998 Jeep Grand Cherokee 5.9 Limited 4x4

1994 Jeep Grand Cherokee Limited V8 4x4 Lifted
Reply With Quote

Thread Tools
Display Modes

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
Problems with power locks/power windows Frango100 Troubleshooting/Problems 8 02-10-2011 07:23 AM
4.7 L v8 with starting issues? dmarrone1 Engine Performance/Intake/Exhaust 14 09-01-2010 09:46 PM
power outlet in rearseat problem 2008hemi Troubleshooting/Problems Discussion 4 01-24-2010 03:11 PM
electrical issues... smack82 Troubleshooting/Problems Discussion 6 01-21-2010 12:20 PM
having some strange issues chefalan23 Grand Cherokee - WK 15 09-19-2009 12:19 AM

» Premium Vendor Showcase
Powered by vBadvanced CMPS v3.2.3

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

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.