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Topic: third cat rattles (Read 822 times) previous topic - next topic

third cat rattles

my 3rd cat on my 95 4.6 cougar sounds like a tuna can lid on sand paper when i stomp on the gas. i was wondering how much it would cost to fix but then wondered, do i NEED the third cat to pass emissions? no engines bigger than factory option pass here for those who were wondering.
It's always fun until someone loses an eye. then it's fun ya can't see.

-James Hetfield back when metallica was still making good music.

third cat rattles

Reply #1 –
imo i would put the third cat back on just in case ya know.

third cat rattles

Reply #2 –
If you don't drive up on the lawn or grass or anything like that you can remove the heat shield around it.  That's most likely your noise.  The tack welds on them tend to break loose causing the rattle noise.  Quite common problem on various makes of cars.
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!
 

third cat rattles

Reply #3 –
k ill check that next weekend.
It's always fun until someone loses an eye. then it's fun ya can't see.

-James Hetfield back when metallica was still making good music.