Blocked Catalytic converter problem - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Compass & Patriot Forum > Blocked Catalytic converter problem

Bill Baird Motorsports DIY parts - NalinMFG.comFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFS: Wranger BRIGHT License Plate LED! Just $3! Great value

Reply
Unread 07-04-2010, 02:28 AM   #1
Sk8ter
Registered User
2009 MK Compass 
 
Join Date: Sep 2009
Location: Very Far form you guys
Posts: 13
Blocked Catalytic converter problem

Hi guys. It has been a long time since my last post in this thread, hope everything goes fine with you.

My 09 Compass, which has done a mileage of nearly 30,000 kilometer in one year, is now working very well and I really like this baby.

But recently some of the Compass in China are facing one serious problem. Their Compass`s Catalytic Converter (the one near the engine) is blocked when the mileage is nearly 35,000 or 40,000 kilometer, and the result is losing highway power and causing extra fuel consumption. Clearly speaking, the Compass with its converter blocked, can only do 140km/h (which is nearly 88mile/h) no matter how deep you put your feet on the pedal (normally a healthy Compass can do 113mile/h), meanwhile the MPG drops badly, from 9 liter per hundred kilometers to 14 plus ( which is 26mpg when healthy and 16mpg when blocked).

This catalytic converter problem is really annoying us, but when we went to the Jeep dealer to ask for a claim, they told us this converter can be only replaced with new one meanwhile we need to pay for it.

On the owner`s manual, the clause is saying the catalytic converter problem which is caused by misusing the fuel or not being maintained probably will cause the deny of claim.

But actually most of the blocked Compass are using the fuel 93# or 97# from the two(and also the only two) gas supplier brands named Sinopec and PetroChina respectively, and they are doing the maintenance in the Jeep dealer, but their catalytic converters are also blocked.

So we are very confused now as that there are so many Compass is (and more Compass will) facing this catalytic converter problem.

I want to know how`s your situation out there? Is your catalytic converter still healthy after 40,000 km? How will you guys deal with a blocked catalytic converter besides replacing it (as the price for each converter is really unreasonable high )?

Regards and Thanks a lot!

Lyon from China.

Sk8ter is offline   Reply With Quote
Unread 07-04-2010, 10:39 AM   #2
tjkj2002
Registered User
2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 7,986
Sounds like the only gas you guy's get is low grade stuff which the cats don't like.Or your gas has to many additives in it,like cleaners,which kill cats fast also.

Do you do alot of short trip city style driving? If so that is another cause for early cat failure and the cat's never get to operating temps and burn off the buildup in them(which clogs them fast).
__________________
'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
tjkj2002 is offline   Reply With Quote
Unread 07-04-2010, 06:40 PM   #3
Sk8ter
Registered User
2009 MK Compass 
 
Join Date: Sep 2009
Location: Very Far form you guys
Posts: 13
thank you tjkj2002!

We are really upset when the Jeep dealer saying the same reason as you said, since we can only get the fuel from those two brand and of course we can`t avoid the traffic jams and bad traffic conditions in the big cities.

Honestly speaking, there are so many other imported cars running on the street, Ferrari, Lambo even Rolls Royce. They requires a much higher quality of fuel but we never heard of any kinds of imported cars had the catalytic converter problem like the Compass dose. Of course some of them have, but not as many as Compass, and the mileage of Compass` catalytic converter blocking is so damn short, (normally the catalytic will out of function after 200,000 km).

After all, I don`t want to complain more in the thread, I just want to figure out a better way to deal with the dying cats in our cars.

Thanks anyway.
Sk8ter is offline   Reply With Quote
Unread 07-04-2010, 09:13 PM   #4
tjkj2002
Registered User
2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 7,986
Quote:
Originally Posted by Sk8ter View Post
thank you tjkj2002!

We are really upset when the Jeep dealer saying the same reason as you said, since we can only get the fuel from those two brand and of course we can`t avoid the traffic jams and bad traffic conditions in the big cities.

Honestly speaking, there are so many other imported cars running on the street, Ferrari, Lambo even Rolls Royce. They requires a much higher quality of fuel but we never heard of any kinds of imported cars had the catalytic converter problem like the Compass dose. Of course some of them have, but not as many as Compass, and the mileage of Compass` catalytic converter blocking is so damn short, (normally the catalytic will out of function after 200,000 km).

After all, I don`t want to complain more in the thread, I just want to figure out a better way to deal with the dying cats in our cars.

Thanks anyway.
Yeah a Ferrari and Lambo does not get driven as much and as often as your Jeep will be,plus how they get driven has alot to do with it also.5000 mile on a Ferrari is considered high mileage.Those types of vehicles actually have sub-standard cats also,more free flowing,that are not as effected like your regular commuter style of vehicles.
__________________
'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
tjkj2002 is offline   Reply With Quote
Unread 07-05-2010, 12:46 AM   #5
Sk8ter
Registered User
2009 MK Compass 
 
Join Date: Sep 2009
Location: Very Far form you guys
Posts: 13
Maybe Ferrari and Lambo are not good samples in this case, but the same Jeep Grand Cherokee and Wrangler in China seldom have so many blocked cases. Other imported cars as same-class as Compass, take Renault Koloes for example, is also well-adapted with the local conditions.

You should know that the fuel quality in China maybe not as good as expected, however, Compass is the first model that has so many cases of catalytic converter blocked here.

Has anyone ever tried to modify the whole exhaust system on Compass? From the exhaust manifold to the pipe.

thanks again, tjkj2002!

Last edited by Sk8ter; 07-05-2010 at 01:10 AM..
Sk8ter is offline   Reply With Quote
Unread 07-09-2010, 08:08 AM   #6
Gramps
The Necessary Evil
 
Gramps's Avatar
2007 MK Compass 
 
Join Date: Aug 2006
Location: Madison/Janesville, Wisconsin
Posts: 5,623
Modifying the the converter is not legal on the N.A. units.
__________________
Bob

Artificial intelligence is no substitute for natural stupidity

MK Skid Plate fasteners for sale posts 68 & 69

Also visit me at Photobucket
'06 WK Grand Cherokee Limited Quadra-Drive II, 5.7
'07 MK Compass Limited 4X4, AutoStick
Gramps is offline   Reply With Quote
Reply

Tags
catalytic converter , compass , fuel problem , patriot
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.