aftermarket converter question -
LinkBack Thread Tools
post #1 of 4 Old 03-12-2002, 07:25 AM Thread Starter
Registered User
Join Date: Mar 2002
Location: wi
Posts: 4
aftermarket converter question

95 JGC has an aftermarket catalytic converter on it that was there when I bought it used. Haynes manual says that converter should last lifetime of vehicle or be replaced by manufacturer under extended warranty. Want to know if this is something I can get replaced by the manufacturer with the correct converter. Any thoughts on this would be appreciared.

mkatchew is offline  
Sponsored Links
post #2 of 4 Old 03-12-2002, 08:07 AM
Registered User
Join Date: Jan 2002
Location: Raleigh
Posts: 11
Just because Haynes makes this suggestion does not mean that it is necessarily a good one. The factory/DC catalytic converters on GC's (at least on 93-98's, not sure about 99 and newer) are prone to go bad. They are not quality units.

My experience has confirmed this. I have a 93' GC with the 4.0L I6. My first cat (factory) started going in late 96'- finally replaced in early 98'. My second cat (from dealer, installed by third party) started going bad in late 99' - replaced early 01'. This time I went to Mieneke - no problems since, but only 1 year on the cat. Mieneke has a good warranty - 5 years if I remember correctly. My next move is to get an aftermarket cat (CarSound) and another new O2 sensor (Bosch) when this one goes. Just taking the oppurtunity to do a little upgrading.

If you are not having problems with the cat do not change it out but do verify that it is the correct one for your GC.


93 ZJ 4.0, Rancho 9000's, Rancho Stabilizer, Splitfire plugs, BFG A/T 235/75/15's
More to come...
fitzer is offline  
post #3 of 4 Old 03-12-2002, 08:35 AM
Registered User
Join Date: Mar 2002
Location: ca.
Posts: 16

hows the car running...unless the cat actually falls apart on the inside causing an exhaust restriction, it should last a lifetime as long as there is not a driveability problem present. this would cause the cat to either not get hot enough or get too hot. whats wrong with it, restricted flow or failed smog?

96 Grand Cherokee/ 4.0L/ RE 4.5" lift/ SYE/ Woods drivelines/ 31's/ many other homemade goodies
motox77x is offline  
post #4 of 4 Old 04-01-2002, 03:26 PM
Registered User
Join Date: Aug 2001
Location: Pittsburgh PA
Posts: 10
I too am having what I think is a problem with my cat. Everything is fine with the Z untill you go up a hill. It stops a 3grand. after the top of the hill it revs nicley to 4500 or so.
Any info on getting it replaced through Jeep?
estover is offline  

Quick Reply

Register Now

In order to be able to post messages on the 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
Cat. Converter Question.... Tek-Neek55 ZJ Grand Cherokee Forum 6 06-13-2009 05:21 PM
question on how to remove catalytic converter bryanhbre ZJ Grand Cherokee Forum 16 03-27-2009 10:15 AM
aftermarket catalytic converter rocks00tj WK Grand Cherokee & XK Commander Forum 4 01-08-2009 06:26 PM
Quick question on catalytic converter. ZJ Grand Cherokee Forum 13 03-27-2008 08:56 PM
Catalytic Converter Question catch22 ZJ Grand Cherokee Forum 8 01-18-2007 02:21 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