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Catalyst rattles inside

Old 01-07-2019, 04:34 PM
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garda440
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Default Catalyst rattles inside

My converter has a rattle. How can I eliminate the noise?
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Old 01-07-2019, 05:27 PM
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Coosawjack
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Welcome aboard!!

New catalytic converter(s)!!
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Old 01-07-2019, 07:01 PM
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GT Nate
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you can't it's the material inside the cat, the honeycomb structure has cracked and is in pieces. As the cat gets hot the rattle will cease as the parts expand.
But yes, time for a new cat.
How old is the car, may still be under emissions warranty.
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Old 01-08-2019, 01:43 PM
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Derf00
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Originally Posted by garda440 View Post
My converter has a rattle. How can I eliminate the noise?
Rattle inside? Two ways, gut the cats or buy new ones. If you gut them they will remain in place buy may fail smog and/or throw a check engine light.
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Old 01-09-2019, 10:22 PM
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garda440
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What if I saw off the Exhaust Pipes, past the Cat Converters, then break-up the ceramic part with a steel rod and hammer. Then run the engine and blow out the ceramic parts.

How would this affect the engine performance?
Would it still run smooth?
Would it use more gas?
Would a need to buy a tuner?
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Old 02-02-2019, 11:14 AM
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Agacerie
 
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Year? Engine?
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Old 02-02-2019, 08:29 PM
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garda440
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Default Catalytic on 2006 V6

itís a 2096 with a V6 engine. Any advice?
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Old 02-03-2019, 11:39 AM
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99GTvert
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Many cars have an oxygen sensor at that part, so gutting the catalytic converter will cause the sensor to end up throwing a code.

You can look for another midpipe with the catalytic converter someone might be selling from their car or get a new catalytic converter as mentioned before.
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Old 02-03-2019, 10:51 PM
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Roger Baker
 
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You can gut them if your state doesnt require inspections but it will set a code for catalyst inefficiencies
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