i have this problem with my 99integra gsr. When i hit 3000rpm it gives a rattling sound like somting is loose. it has it in all the gear when it hit 3000 rpm.

 

check your exhaust, and the part that connects to your headers may be those

 

Probably something with the exhaust, where does it sound like it's coming from?

 

Check your exhaust and your cat. Maybe there is a bolt that is loose causing the rattle.

 

could be the heat shield is coming loose -

 

I had the same thing happen to me and it was the exhaust manifold cover thats what i would start with

 

your exhaust might have a crack in it.... if so you can buy a clamp for it anywhere make sure u get the right size

 

i dont think its anything serious. i had the exact same thing happen to me and all i know is it was just a loose heat sheild.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90dateg &raquo;</TD></TR><TR><TD CLASS="quote">could be the heat shield is coming loose - </TD></TR></TABLE>

 

ive had that problem, check ur cat

edit: ppl on ht also told me it was heatshield, but check ur cat it may be bad

 

ok i check everywhere. i took out steal cover for the whole exhust system. it still sound the same.

 

maybe the heat sheild..mine around 4000rpm makes a rattle sound and its the heat sheild.

 

Check the bolts between the header and cat, mine rattled also around 2.5-3k rpm and that's what it was (long story short, the bolts bent and stretched causing the header to come a little loose from the cat, but yours might just be loose).

 

i had the same problem with my 99 gsr at about 60,000k. it was the piece between the header and the cat. honda said it happens sometimes if you live in the northeast due to salt used on the roads in the winter. i replaced the entire exhaust system for not much more than what honda wanted for just that piece (a piece).

 

i took out all the heat sheild and the header heat sheild and test it, same problem. it sound like its coming from the manifold bolt. i hand tight them and still same problem. at 3000 it sound like a turbo.

 

I had an extremely annoying rattle at ~3200rpm... could only hear it when accelerating slowly through 1st and 2nd. Heat shield was loose.

 

had the same problem, but i figured out the problem to late.. it was a bracket they call the flange... its right behind the engine where the headers connect to the cat.. well on mine it ripped off n made a hole on my headers.. whacckk...