Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here! ZJ (93-98), WJ (99-04), WK (05+)
All ZJ/WJ/WK specific tech questions asked here!

Code 420?

Old Jul 8, 2011 | 08:06 PM
  #1  
tv559's Avatar
Thread Starter
Newbie
 
Joined: Jul 2011
Posts: 2
Likes: 0
Model: Cherokee
Default Code 420?

Hi Guys-


I had a quick question with this code do I need to replace the catalytic converter? Or is there any way around this code without spending $1000 from dealership?


Thanks in advanced,

BTW I have a 05 Jeep Gr Cherokee 4.7L

Last edited by tv559; Jul 8, 2011 at 08:08 PM.
Reply
Old Jul 8, 2011 | 08:45 PM
  #2  
mudfrog's Avatar
Former Sponsor
 
Joined: Feb 2010
Posts: 474
Likes: 0
From: Roanoke VA
Year: 1995
Model: Grand Cherokee
Engine: 4.0L
Default

Try cleaning your o2 sensors first. If it really is the converter send me a PM. You should never buy a converter from the dealership.
Reply
Old Jul 8, 2011 | 09:49 PM
  #3  
Bustedback's Avatar
CF Veteran
 
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Default

How many miles do you have on this 2005?
Reply
Old Jul 9, 2011 | 11:52 AM
  #4  
tv559's Avatar
Thread Starter
Newbie
 
Joined: Jul 2011
Posts: 2
Likes: 0
Model: Cherokee
Default

Originally Posted by Bustedback
How many miles do you have on this 2005?

It has 130K miles
Reply
Old Jul 9, 2011 | 12:20 PM
  #5  
MTLXJ's Avatar
Cherokee Forum Vendor
 
Joined: May 2010
Posts: 1,177
Likes: 1
From: Montreal, Canada
Year: 2000
Model: Cherokee
Engine: V6 4L
Default

Lolz 420. I know what the problem is...
Reply
Old Jul 9, 2011 | 04:20 PM
  #6  
Bustedback's Avatar
CF Veteran
 
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Default

Well you're over in mileage, but here is some info on federal wmissions warranties. You may want to check your local and States emissions warranty laws.

http://www.epa.gov/oms/consumer/warr95fs.txt
Reply
Old Jul 9, 2011 | 11:16 PM
  #7  
DaddyGreenGenes's Avatar
Seasoned Member
 
Joined: Mar 2011
Posts: 271
Likes: 0
From: Richmond
Year: 98
Model: Cherokee
Engine: 4.0
Default

the 420 code means your pipes are empty...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4WD4EVER
Modified XJ Cherokee Tech
28
Jul 28, 2023 07:12 PM
sluger17
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
Jul 8, 2023 07:08 AM
dennismo
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
Apr 15, 2018 05:57 PM
tleed
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
Oct 4, 2015 01:20 PM
Morris4x4Center
Vendor Showcase
0
Sep 25, 2015 11:57 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:31 AM.