1995 Laredo Weird "bucking" issues while driving - JeepForum.com
LinkBack Thread Tools
post #1 of 4 Old 08-06-2006, 04:17 AM Thread Starter
Registered User
Join Date: Jul 2006
Location: Bay Area, CA
Posts: 7
1995 Laredo Weird "bucking" issues while driving


I have a 1995 Laredo 4x4 sitting at the curb that has weird "bucking" type issues totally randomly while driving, sometimes it will happen, sometimes it won't. I don't really know how to explain it except as a bucking, jerking feeling. When it starts to happen, if I pull over, and rev the engine, it will sputter/buck/jerk as well. It will also stall sometimes at red lights (its an automatic). I don't know if these are all related or are completely different. Any help would be appreciated if anyone even knows what I'm talking about!


jrsquared is offline  
Sponsored Links
post #2 of 4 Old 08-06-2006, 05:00 AM
Registered User
greasefingers's Avatar
1994 ZJ 
Join Date: Sep 2003
Location: Northern VA, USA
Posts: 8,237
Thatís a little unusual. My two guess are: fuel pump or output speed sensor.
Pull the codes
Extracting Fault Codes:
Turn the ignition switch ON, OFF, ON, OFF, ON and observe the CHECK ENGINE LIGHT. The CHECK ENGINE LIGHT should begin to flash a series of codes. The flashes will be separated by short and long pauses. The long pauses separate the "ones" and "tens" positions, and each code from the next. A code 55 will be displayed at the end of the test.

Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
greasefingers is offline  
post #3 of 4 Old 08-06-2006, 04:58 PM Thread Starter
Registered User
Join Date: Jul 2006
Location: Bay Area, CA
Posts: 7
I tried checking the codes, no codes... I want to sell it but I want to know if it would be worth it to fix it first. But if the problem is too hard to diagnose, I don't want to spend money replacing parts that arent the issue...
jrsquared is offline  
post #4 of 4 Old 07-12-2011, 07:20 AM
Registered User
1998 ZJ 
Join Date: Oct 2010
Location: New Orleans
Posts: 14
this is the reply that I got, worked great hope it works for you
"That would most likely be your upstream 02 sensor (closest to the engine)

Unplug it for a few days . You will get a CEL , but , the symptoms should disappear and run fine . Replace sensor ASAP if this is the case . CEL will disappear after the sensor is reconnected ."
fishjeep1 is offline  

Quick Reply

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:
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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
"Unintended acceleration" 2005 Jeep Grand Cherokee Laredo mknight WK Grand Cherokee & XK Commander Forum 11 02-23-2010 01:43 PM
buzzing or weird sound when I shift the gear in " R " position - 3.0 crd XH segona WK Grand Cherokee & XK Commander Forum 15 12-02-2009 06:06 PM
"Relay Center" 1995 Grand Cherokee Phototaxis ZJ Grand Cherokee Forum 1 04-22-2008 08:48 AM
1995 zj bucking when turning spikeystrip ZJ Grand Cherokee Forum 5 03-22-2008 05:38 AM
burning "smell" issue and "gas pedal vibration" issue in 07 gc laredo beepbeep13 WK Grand Cherokee & XK Commander Forum 4 01-08-2007 06:06 PM

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome