s13 strange rattle noise at 3k rpm

[nightslider916]

I cant figure out what is making the is rattle noise. It sounds like something hitting the exhaust only at 3k rpm but i cant seem to pin point. any suggestions??

[caspa]

its that heat wrap crap that goes around you down pipe. it's chill
don't worry about it.

[STEEZxIT]

^^ that.

Or you have a bad cat with crumbled up honey comb.

Lift your car up and give it a good shake. Safely of course. If nothing then might want to drop your exhaust and inspect your cat. If you have it on.

[nightslider916]

I have 3'' turbo back exhaust with no heat wrap and no cat.

[caspa]

heat wrap......

[fckillerbee]

people....he did say turbo back.

check to see if one of the sensors for your tranny is hitting something. I wired mine wrong the first time...and it was hitting shit.

but if it's at a certain rpm.....have someone rev your car to 3k and listen for it.

[acurawin]

check to see if the bolt that holds the down pipe to the transmission is still there. If its not it can rattle at higher rpms.

[nightslider916]

I took a look at it this morning but i still couldnt find it. I drove it around the block a few times and I hear the noise at 3k when I drive, but when I get home and jack it up and rev it, the noise wont appear. Im very frustrated. I need to get it on a lift... Any more ideas???