catalytic converter rattle.

Quote from deadfeat

Need to get my tires balanced, figured time to go with the beads.

Quote from deadfeat

Just saying

Call dealer and give them your vin and mileage. u should fall under the fed 8/80 rule and get a free one.

They will probably only warranty it under the 8/80 emissions if you fail emissions.

I doubt a rattle will qualify.

Quote from quadna

Just saying

There are limits to rattles

Quote from keith_c

They will probably only warranty it under the 8/80 emissions if you fail emissions.

I doubt a rattle will qualify.

Rattling cat means the catalyst has separated from the housing thus a failed emissions component. It should qualify but who knows what the dealer will do.

Converter failure is a failure however it takes place. It should definitely be covered under that warranty, shouldn't matter if it sets a code/ fails emissions or not.

Quote from I_Am_Dan

Converter failure is a failure however it takes place. It should definitely be covered under that warranty, shouldn't matter if it sets a code/ fails emissions or not.

From the EPA page:

A. Performance Warranty

The Performance Warranty covers repairs which are required during the first 2 years or 24,000 miles of vehicle use (whichever first occurs) because the vehicle failed an emission test. Specified major emission control components are covered for the first 8 years or 80,000 miles (whichever first occurs). If you are a resident of an area with an Inspection and Maintenance (I/M) program that meets federal guidelines, you are eligible for this warranty protection provided that:
• Your car or light-duty truck fails an approved emissions test; and
• Your vehicle is less than 2 years old and has less than 24,000 miles (up to
8 years/80,000 miles for certain components); and
• Your state or local government requires that you repair the vehicle; and
• The test failure does not result from misuse of the vehicle or a failure to follow the
manufacturers’ written maintenance instructions; and
• You present the vehicle to a warranty-authorized manufacturer representative, along
with evidence of the emission test failure, during the warranty period.

Not sure how the JK is setup, but on the TJ the main cat is not monitored, therefore cannot cause a code to be set. And the precats do all of the real work, you can pass the DE sniffer test with a hollow main cat.

Nothing wrong with trying.

I replaced a lot of cats under warranty when I was working at a dealer. No one ever had to prove they failed emissions. If it's rattling its bad and should be replaced.

Quote from Spedly

I replaced a lot of cats under warranty when I was working at a dealer. No one ever had to prove they failed emissions. If it's rattling its bad and should be replaced.

^^This. Most dealers will just replace it. We do them all the time for noises.

Quote from FireFighter29

dealer just called and said "your cat is fine, it was the heat shield above the Y pipe."
Im almost positive that i checked all the heat shielding, but i could've been wrong. I hope the rattle is fixed.
and if it was just the heat shield then i feel SOOOOO STUPID. !

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Meh, it happens... Sometimes it's the simple things that will drive you crazy. I'll be worried the day I DON'T hear any rattles, creaks or noises!!

Muffler bearings...