catalytic converters
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Not an expert on them, but on the '99 I gave away to my son in May, I put 310K miles on them and they are still on it. The probable cause of a failure is mixture problems or excessive oil getting through to them resulting in their getting plugged up.
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Blow by, and rich fuel mixture ( poor spark, lazy O2 sensor, restricted fresh air , ect. )are the most common causes . How long will they last ? I have a '79 T/A that has the original Cat on it.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
CATs last on the average 80K +++ miles 80K is the federal mandated warranty for cats. I have seen cats last 200000 miles.
Poor fuel economy cause an excessively RICH condition and that causes CAT over heating and destruction before that time period. The other cause of death is age. After the CAT gets old the rare metals that convert the gasses to inert compounds become weak and need to be replaced.
I would say 200,000 miles is the period of useful service.
BC
Poor fuel economy cause an excessively RICH condition and that causes CAT over heating and destruction before that time period. The other cause of death is age. After the CAT gets old the rare metals that convert the gasses to inert compounds become weak and need to be replaced.
I would say 200,000 miles is the period of useful service.
BC
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
I don t know where exactly in Missouri you re at but where i live, in Crawford County, I DON T HAVE EMISSIONS!!!
--Jason
Melting Slicks
Joined: Feb 2006
Posts: 2,172
Likes: 104
From: Des Moines Iowa
