1994 YJ Chugging while idling/accelerating - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ 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 09-09-2010, 10:57 PM   #1
Newb
 
Join Date: Sep 2010
Posts: 1
1994 YJ Chugging while idling/accelerating

Bought my brik a year ago, has a rebuilt engine with approximately 40k miles. 6 cyl 4.0 l, manual. haven't had any engine issues until a few months ago it started to chug intermittently and lose power while accelerating. it has eventually gotten to the point that it is intermittently normal, and sounds like a pod racer. or a diesel. I have: replaced air and fuel filter, fuel pump, TPS temp sensor plugs cap rotor and run injector cleaner and octane booster through several times. It is still chugging. A friend told me to try BG 44k and if that didn't work then replace the injectors. Any other possibilities or suggestions? Thanks. - kirb

kirbatron is offline   Quote Quick Reply
Old 09-10-2010, 11:06 AM   #2
Jeeper
 
Join Date: Jul 2010
Location: Morris County, New Jersey
Posts: 73
Quote:
Originally Posted by kirbatron View Post
Bought my brik a year ago, has a rebuilt engine with approximately 40k miles. 6 cyl 4.0 l, manual. haven't had any engine issues until a few months ago it started to chug intermittently and lose power while accelerating. it has eventually gotten to the point that it is intermittently normal, and sounds like a pod racer. or a diesel. I have: replaced air and fuel filter, fuel pump, TPS temp sensor plugs cap rotor and run injector cleaner and octane booster through several times. It is still chugging. A friend told me to try BG 44k and if that didn't work then replace the injectors. Any other possibilities or suggestions? Thanks. - kirb
Seeing how few miles are on it for the year, it sounds like you need a basic tune up, of new spark plugs, wires and distributor if it hasn't been done. Those kits go for about 150 bucks, or just do them individually, might be a few bucks cheaper. Just a thought, good luck....

YJ94PaulyDFromJersey is offline   Quote Quick Reply
Old 09-10-2010, 11:33 AM   #3
Jeeper

WF Supporting Member
 
Got_Mud?'s Avatar
 
Join Date: Mar 2010
Location: Charlottesville, VA
Posts: 347
I had the same issue with an old SCCA car I ran years ago. An old mechanic friend of mine came by one night when I was in the garage playing with the car and I told him what I was dealing with. He opened the hood, shut all the lights off, fired up the car and revved the engine to about 4k RPM. Looked like a lightning storm under the hood with the sparks flying from one wire to the others and the block. He told me that even one wire, under load, can have a pinhole fault and cause all sorts of carp.
Long winded answer - sorry. I'd change the plugs and wires - and make sure that the plugs are the correct ones for the engine - not what the parts store cross-references. (Found that out the hard way, too )
__________________
In dog beers, I've only had one.....
Got_Mud? is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
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

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Chevy 350 into a 1994 YJ? Austin Meredith YJ Tech Forum 15 01-04-2014 07:22 PM
Diff between a 94 1994 Sahara YJ and a 94 S Sport and the SE KellyK General Jeep Discussion 6 01-06-2011 01:31 PM
1994 Jeep Sahara Wrangler owner (new) HippeeSandee WF New Member Check In 3 12-22-2008 10:44 PM
Very Clean, Very Capable 1994 Jeep YJ (TX) stinger124 Classifieds Archive 16 10-25-2008 05:50 PM
1994 4.0 wrangler wiring harness NAVYCHIEF Washington Jeep Forum 0 09-19-2008 09:53 PM


logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 01:58 AM.



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