98 JGC chugging problem - JeepForum.com
LinkBack Thread Tools
post #1 of 4 Old 10-18-2009, 09:34 AM Thread Starter
Registered User
Join Date: Oct 2009
Location: Michigan
Posts: 4
98 JGC chugging problem

OK I have a 1998 Grand Cherokee that has about 116,000 miles on it with the 4.0L. It is a 4x4 Larado Package. I recently had the muffler replace and after that i would drive it for about 5 miles and it would act like someone was turning the fuel on and off. I would lose all power and have to pull over and wait for it to go away. It would last about 15 minutes and you could smell a load of fuel until it went away. It would then run normal again until you drive if a couple of miles.

Now i took it back to the shop and they said i need a new converter. I took it back home and cut the converter out and put a straight pipe in. Still does the same thing. I checked the fuel pressure and it runs at about 47lbs so that should be good.

I am not sure what i am missing but i hear alot of people talking about either the TPS or AIC.....could either of these cause this problem? I am going to test the TPS (after reading the posts .25 - .50 volts i think). Any other ideas? It does only happen when warm and there are no exhaust leaks.

Thanks in advance.

Profire73 is offline  
Sponsored Links
post #2 of 4 Old 10-18-2009, 11:26 AM
Registered User
1995 YJ Wrangler 
Join Date: Oct 2009
Location: oklahoma
Posts: 123
make sure the muffler isnt plugged
wheelin is offline  
post #3 of 4 Old 10-19-2009, 06:02 AM Thread Starter
Registered User
Join Date: Oct 2009
Location: Michigan
Posts: 4
I am going to take the muffler off to make sure but I am kinda thinking that maybe its my Crank Sensor.

Cause the problem will go away and then reoccur in a matter of 15 minutes. I would think that if the muffler was clogged I would have the problem on more of a constant basis. But then again I am not a mechanic and that is why I am here picking everyone else's brain.

On another note: I do not have the O2 sensor that was in the converter hooked up right now......would this make it run like that? I thought it would just give me the check engine light and also i could see my fuel mileage go down. Is there another O2 sensor that could be doing this.
Profire73 is offline  
post #4 of 4 Old 11-30-2009, 06:08 PM
Registered User
Join Date: Jan 2008
Location: ohio
Posts: 16
Any updates on this? I might be having the same problem..
mrquazy 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
87 yj problem getbent666 Audio, CB & Ham Radios, GPS, & Electrical 0 08-29-2009 11:31 PM
'05 5.7L Chugging Sound xa310165 Engines & Drivetrain 5 03-11-2009 06:55 PM
Amp problem Th3 Cavalry Audio, CB & Ham Radios, GPS, & Electrical 10 11-26-2007 05:36 AM
Noise When Chugging Along When Giving It Gas pete1182 Engines & Drivetrain 1 11-28-2006 07:50 PM
Problem in 4 low 1966cj5 Tires & Wheels 1 03-30-2006 05:25 AM

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