Name That Rattling Sound!

[SMOKEYV35]

hey guys,

car has developed a tinny rattling sound at idle. it seems to go away with throttle, and then as the revs drop it rattles again.

i got under the car and held one end of a screwdriver to everything i could think of, and the other to my ear - and i suspect it's related to the exhaust. it could be something simple like a loose heat shield or a stone caught behind a shield......but i'm also worried it could be something more sinister - like little bits of ceramic exhaust wheel bouncing around in front of the mesh on the cat converter.......

stock neo turbo has been running 11-12psi off the EBC.......is there any other way i can diagnose other than dropping the exhuast in front of the cat and seeing what comes out? its my first experience with a ceramic wheeled turbo, so any insight would be good!

for example, if the exhaust wheel does sh1t the bed, does it do it all at once, or will the blades break/chip off slowly.....? because the car is still boosting reasonably strong, only paranoia is making me question it....

cheers! Mat

Edited October 3, 2010 by SMOKEYC34

[wolverine]

Loose biscuit in the cat?

[-RBD2-]

Easy fix

take off the cat,smash all the mesh shit out of it

replace all mufflers with just pipes

then wen the exhaust wheel finally snaps you can shoot it into the car behind you

that's my logic anyways,then you won't have to worry about it rattling wen it breaks

on a serious note,check the bolts on both ends of your cat,I know mine would always come loose

start the car and let it idle,wen you hear the rattle go to the back of your car and hold your foot against the rear muffler

if the rattle goes away then it's exhaust related,I had a grounding wire dangling onto my cat and the rattle was so f**ken annoying,so I just chopped the wire off.f**k knows wat it was from tho...?

Good luck mate