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Discussion Starter · #1 ·
Can someone please advise on the difference in sound between a rattling cat vs. a rattling heat shield on a V8? Better yet, can someone please post a picture of heat shields on a V8, so I know where they are?

I have a rattling sound -- sounds like marbles in a can -- and I'm thinking it's the $$$ cat that needs to be replaced. I'm going for aftermarket high-flow cats. But I don't want to spend the money if it's just the heat shields.

Thanks in advance!
 

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98 Esprit V8 Calypso Red
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310 Posts
Rattling Heatshields usually has the noise between 1800-2500 RPM, once RPM gets higher it will be gone...

I would start from the cats, just knock on it & see if it has any rattle sound.

Heatshields are hard to find...they're above the turbos right next to exhaust manifolds.

Email me if you need more info.

Alan
[email protected]
 

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get under car w/rubber mallet. tap and ye shall find.

I've secured many a heat shield w/metal straps and/or wire.
 
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