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Old Apr 20, 2008 | 07:18 PM
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From: BFE
Exclamation CAT Converters

Mine seem to be a little stopped up.... is there any way to clear them out without having to cut them out and replace or get new exaust?
 
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Old Apr 20, 2008 | 07:23 PM
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No.. but before you think about replacing them, i'd go to a good exhaust shop and have them test the cats..if they are bad i would just put 2 new cats on.
 
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Old Apr 20, 2008 | 07:24 PM
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Also what do you mean by "seem a little stopped up"...?
 
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Old Apr 20, 2008 | 07:39 PM
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From: BFE
well i went to autozone and the codes said so but i have been told that there is a cheapskate route of clearing them.
 
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Old Apr 20, 2008 | 07:55 PM
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Although it isn't advertised to do such, in the not recent past I've had moderate success in "cleaning" cats in older vehicles with this WYNNS product. With several bottles added to the fuel system it will also let borderline vehicles "sneak" past the old sniffer tests. Keep in mind this was pre-OBD. You'll have to locate a dealer or professional garage to get it since it isn't available retail.

WYNNS EMISSION CONTROL PN.67910
Add to fuel tank for lower emissions and better fuel economy.


* Reduces tailpipe exhaust emissions in gasoline and diesel engines
* Helps eliminate "rotten egg" odor
* Keeps fuel injectors clean
* Use in gasoline or diesel
* Contains no alcohol
* Removes water from fuel tank
* Patented formulation
* Reduces black soot exhaust from diesels
 
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Old Apr 20, 2008 | 07:57 PM
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Originally Posted by RayAWheeler
well i went to autozone and the codes said so but i have been told that there is a cheapskate route of clearing them.
Was your check engine light on or did you get the codes read for some other reason? What were the codes?
 
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Old Apr 20, 2008 | 08:01 PM
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From: BFE
check engine light was on and said one o2 sensor was out. When i replaced the one it said the other three were out and that my cats were needing replaced. Cant remember what the codes were, it was about 5 months ago. I replaced all o2 sensors but light is still on. Also in my county we don't have emissions testing so, any solution would help as long as it is cheap. I'm a waiter so strapped for cash.
 
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Old Apr 20, 2008 | 09:20 PM
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Sawzall, piece of pipe, and a welder. Problem solved!
 
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Old Apr 21, 2008 | 07:25 AM
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First off, the are are NO codes that say cats are stopped up. If your engine still runs with normal power, they likely are not.

I'd guess you just have ecciciency codes which do NOT meant they cats are plugged, it just means that they are not working to clean the exhaust.

Start over.

If the CEL is on, get the codes read. Most of them have previously been discussed, so use the SEARCH tool to look for those previous discussions.

Steve
 
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