rattle on start up?

[dmw319]

my exhaust rattles but only on start up, for about a minute, then it goes away. is it maybe my muffler just warming up or something? anyone ever had this problem?

[BLLDOGG]

maybe its your y-pipe that could be a little lose then it is warming up and sealing. mine does this but it doesnt rattle, it leaks

[ma4life]

I just replaced a friends exhaust that was doing the same thing ... the CAT had a huge chunk of crap inside that was rattling around.

[dmw319]

the cat is a few months old, and it sounds like its coming from further back than the y-pipe. i might just put it up on jacks and start it and look around. any other ideas?

[99camaro-3.8]

i have the same problem. it goes away once you rev it a little and it warms up. maybe a loose exhaust clamp?

[ma4life]

also check the heat shield around the cat / muffler ... may be loose

[Fbody3400]

My answer is this: F Bodies just rattle in general. Looks of squeaks and rattles compared to other cars.

[94firebirdteal]

damn, I hope ppl wont confuse me with tealfirebird94.

[Fbody3400]

Originally posted by 94firebirdteal:
damn, I hope ppl wont confuse me with tealfirebird94.

[img]graemlins/rofl.gif[/img] thats funny

[Guest]

I have this **** too. I have headers, and when I start my car and its cold the whole car shakes for a few minutes, shivers, vibrates, all sorts of horrid noises. I have yet to figure it out.

[dmw319]

it was my ypipe bolts, just tigtened em up some [img]smile.gif[/img]