BCondren

I'm trying to figure out where a rattle is coming from on my 91 DX. I've checked the front liscense plate and exhaust heat shield. Both were tight. It only happens when I'm first starting or shifting. It doesn't do it when the engine picks up the rpms. Is there another shield there I should know about? I haven't jacked the car up yet.

Glazedham42

Might be the heat shield on your catalytic converter, or the converter itself. Mine was rattling pretty bad so I cut the thing clear off.... That fixed it!

SLPRprotege

I had that same problem too. Ripped that heat shield from the cat and have not had the problem since.

BCondren

If I do find out it's the heat shield for the cat and I take it off, it's not going to fry anything is it?

mazda disciple

nope it will be fine mines off too

BCondren

Cool, I'll have to check it out when I get the chance.

BCondren

I put the CAI on my car and the rattle pretty much disappeared. I had to strain to hear it. BTW, I'm very glad I got that kit.

kshearon

If you do not remove the converter heat shield it will remove itself. Mine did.

No detrimental effects.