Code 420...Time to replace the Cat. - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
Reply
 
LinkBack Thread Tools Rating: Thread Rating: 1 votes, 5.00 average. Display Modes
post #1 of 18 (permalink) Old 12-16-2006, 01:29 AM Thread Starter
Intrepid Pro
 
Gorm's Avatar
 
Join Date: Jan 2003
Location: Iowa
Posts: 7,101
Feedback: 20 / 100%
                     
Code 420...Time to replace the Cat.

I finally got tired of seeing the check engine light for code 420. Saved a little of money and got quoted 260 for replacement of the passenger side cat. Thats parts and labor. Wasn't too bad considering Chrysler wanted more than that, just for the cat itself.

Its not an OEM cat...but hopefully this will improve my gas mileage and more importantly, keep that cat from tripping the code.

Every early 2.7 owner will probably experience this, as when the seals on the exhaust valves go bad, they blow oil directly into the cat, slowly destroying it. This is what happened to me. Luckly the one on the drivers side hasn't been tripping the code yet, so I do not plan on replacing it.

So, for those who have had this done, is 260 a pretty good price?

--Gorm

Gorm is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old 12-16-2006, 01:38 PM
Intrepid Modder
 
Join Date: Jul 2006
Location: Wisconsin
Posts: 400
Feedback: 0 / 0%
                     
I'd say so. I have a cat code too but I forget which one... where did you take your car? I'm getting a slightly different code I think... And I was told my code could just be the upstream sensor. So if thats cheaper I'm gonna try that first I guess...

I got an engine light on. I checked for codes and got 0432 which in Chilton's handbook says "1/2 Catalytic Converter Efficency (Catalyst 2/1 efficiency below required level.)"

If you got anything more to add to the thread please do so. Thanks!

Heres my thread: http://dodgeintrepid.net/forums/showthread.php?t=75333
ThaArtist is offline  
post #3 of 18 (permalink) Old 12-16-2006, 01:44 PM
Intrepid Pro
 
froggy81500's Avatar
 
Join Date: Jul 2004
Location: Upstate, NY
Posts: 4,388
Feedback: 0 / 0%
                     
Hey Gorm, have you had the O2 sensors checked out lately? the reason why they have upstream and downstream O2 sensors is to monitor the efficiency of the cat-verters. The pcm compares the readings of the upstream and downstreams, so if either are bad, it could lead to an indication of a bad cat. Just my $.02
froggy81500 is offline  
post #4 of 18 (permalink) Old 12-16-2006, 02:03 PM Thread Starter
Intrepid Pro
 
Gorm's Avatar
 
Join Date: Jan 2003
Location: Iowa
Posts: 7,101
Feedback: 20 / 100%
                     
Theres nothing wrong with the sensor. I swapped both of the rear ones from side to side, then it threw the same code for the same side....its got to be the cat.

--Gorm
Gorm is offline  
post #5 of 18 (permalink) Old 12-16-2006, 02:13 PM
Intrepid Modder
 
dafella's Avatar
 
Join Date: Mar 2006
Location: Dayton, OH
Posts: 347
Feedback: 1 / 100%
                     
I'm curious where you took your car also. $260 sounds pretty good for parts and labor. I was quoted close to $400 for just the driver's side cat. And, I have the P0432 code and replacing the sensors didn't get rid of it.
dafella is offline  
post #6 of 18 (permalink) Old 12-16-2006, 03:08 PM Thread Starter
Intrepid Pro
 
Gorm's Avatar
 
Join Date: Jan 2003
Location: Iowa
Posts: 7,101
Feedback: 20 / 100%
                     
Usually on these cars when the sensors go bad...they throw sensor codes...not cat codes.

--Gorm
Gorm is offline  
post #7 of 18 (permalink) Old 12-16-2006, 04:24 PM
Intrepid Modder
 
Join Date: Jul 2006
Location: Wisconsin
Posts: 400
Feedback: 0 / 0%
                     
Quote:
Originally Posted by dafella
I'm curious where you took your car also. $260 sounds pretty good for parts and labor. I was quoted close to $400 for just the driver's side cat. And, I have the P0432 code and replacing the sensors didn't get rid of it.
Ahhh same as me... shiet... yeah and I was quoted around $400 from the mopar guys with the discount too... i was hoping it was a sensor and not a cat ... i guess ill still try to swap the sensors and see if the code goes away (or switches to other side) or not and thatll let me know if its for sure the cat or not right?
ThaArtist is offline  
post #8 of 18 (permalink) Old 12-16-2006, 04:25 PM
Intrepid Modder
 
Join Date: Jul 2006
Location: Wisconsin
Posts: 400
Feedback: 0 / 0%
                     
Quote:
Originally Posted by Gorm
Every early 2.7 owner will probably experience this, as when the seals on the exhaust valves go bad, they blow oil directly into the cat, slowly destroying it.
I got a 2000 but still concerned with this issue since I'll probably be replacing one of my cats soon... How do you fix that problem?
ThaArtist is offline  
post #9 of 18 (permalink) Old 12-16-2006, 05:40 PM
Intrepid Pro
 
froggy81500's Avatar
 
Join Date: Jul 2004
Location: Upstate, NY
Posts: 4,388
Feedback: 0 / 0%
                     
Quote:
Originally Posted by Gorm
Theres nothing wrong with the sensor. I swapped both of the rear ones from side to side, then it threw the same code for the same side....its got to be the cat.

--Gorm
Ok, thought I'd throw that out there. Good diagnostic troubleshooting, swapping from side to side like that. I'd say you've definately ruled out O2 sensors.
froggy81500 is offline  
post #10 of 18 (permalink) Old 12-18-2006, 12:04 PM Thread Starter
Intrepid Pro
 
Gorm's Avatar
 
Join Date: Jan 2003
Location: Iowa
Posts: 7,101
Feedback: 20 / 100%
                     
Well apparently my shop "misquoted" me, and thoght I ment the "middle cat." They now want 460 bucks to do it. HA.

Don't really how they thought middle cat when i said "Passenger side Cat"

Either way, looks like I'll be putting this off again for a while.

--Gorm
Gorm is offline  
post #11 of 18 (permalink) Old 12-18-2006, 01:07 PM
Intrepid Pro
 
Join Date: Oct 2006
Location: Kansas City Metro
Posts: 1,476
Feedback: 1 / 100%
                     
Do it yourself!!! lol....
x_00trepes_X35 is offline  
post #12 of 18 (permalink) Old 12-18-2006, 01:18 PM
Intrepid Modder
 
Join Date: Nov 2006
Location: Woodbridge, VA
Posts: 520
Feedback: 0 / 0%
                     
2.7 only?

Is this issue something that happens to 2.7 engines only, or should I be prepared for it to happen to my 3.2?
drynoc is offline  
post #13 of 18 (permalink) Old 12-18-2006, 01:24 PM
Intrepid Fan
 
JJasinski7's Avatar
 
Join Date: May 2005
Location: Sparta NJ
Posts: 160
Feedback: 0 / 0%
       
I did a 2.7 to 3.5 swap on my 02 trep se and when it was all done, i got error codes about my 02 sensors, i got those replaced then my car should me another code 420, ive been too lazy and cheap to get it fixed, the dodge dealership was gonna charge me 80+ just to see what the problem was. But if 420 is just the passenger side cat maybe all of us could goto the same mechanic and get some kind of deal lol.

James
JJasinski7 is offline  
post #14 of 18 (permalink) Old 12-18-2006, 03:36 PM Thread Starter
Intrepid Pro
 
Gorm's Avatar
 
Join Date: Jan 2003
Location: Iowa
Posts: 7,101
Feedback: 20 / 100%
                     
If i swap engines at some point... I will be getting rid of both converters.

More than likely, your cats are bad from the 2.7 being in there.

--Gorm
Gorm is offline  
post #15 of 18 (permalink) Old 12-18-2006, 04:23 PM
get off my lawn


 
DrDodge's Avatar
 
Join Date: Jan 2006
Location: Smyrna , Tn
Posts: 15,441
Feedback: 6 / 100%
                     
Gorm,, even 460 aint too bad around here they quote 575 to 650,,,
DrDodge is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionaly, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.

User Name:
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



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 On
Pingbacks are On
Refbacks are On

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