I took off the cat heat shields. Still rattled. I tried to take off the exhaut manifold shield, and the dang bolts broke! Both of them! I couldn't get around to the rear mani shield. What size are those bolts? Box wrench kept slipping, and I couldn't see...
Anyway, it almost seems like the buzzing/rattling is actually worse now! It starts at about 2800 and continues up to about 4500, whereas with the shields on, it started around 3200 and stopped around 3800.
What a friggin pain!!!
Anybody have some ideas on how to stop the noise?


[Modified by chairmankaga, 9:56 PM 3/28/2002]

 

get a new header

 

Yup...it sounds like the inside of your stock exhaust manifold is beyond loose. I can't imagine the torture you are going through right now. Mine only went from 3000-3200 RPM.

 

I'm having the same problem, I found that my rattling was coming from where the A and B pipe meet, the bolts that hold it together (there are suppossed to be 3) were messed up. The last guy to work on my car apparently did not put one back in correctly, it fell out and caused a rattling that got worse and worse... my new header will be here tomorrow though. Good luck.

 

mine does the same thing, except from idle all throughout the powerband. Mine sounds like its coming from the cat. converter, though. could it be the exhaust manifold??

 

I imagine there is something either extremely loose or just dangling. Check under the car and do a thorough inspection. It's hard to tell what it can be...because it can be anything, really.

 

that's what i figured...i really wouldn't know what to look for, and i was planning on getting h/e/cat this summer, so i hope that will fix it.

thanks mang

 

I have mine for sale...

$60 + shipping and it's yours.... first come first serve

 

My exhaust rattles as well.. it's not the heat shield and it only lasts until the engine is warm.. any ideas on what it could be?

 

your what??

 

go to a local shop, run the car when is up in the hoist, mostly is the heat shield or the header bracket, or could be something inside the cat is fu*ked, go to a shop and the guy should find out in no time

 

check all the heat shields under the car as well that follow down the exhaust path mine were loose and rattled like hell

 

Had the same problem. Took off all the heat sheilds under the car, and the heatsheild thats in front of the header. Later found out its the heatsheild behind the header fuggin POS

 

So if I go through and remove ALL the heatshields on the exhuast like you have said... it's OK for the car??

 

************************************************** ***********
The problem with most all `94-95 GSRs... ACTUALLY was a TSB... sadly us owners are a little TOO late for it.

The `94-95 GSRs use dual-piped a-pipes. The inner piping actually breaks loose, this breaking loose allowed it to vibrate against the outer piping. Interesting eh?

Take it to a muffler shop, they can "blow" using a torch... a hole into each pipe and weld the two pipes together... then close the hole. VERY simple process. Mine required three holes to be blown. Right before it entered the cat, and at the beginning of each pipe heading up.

Very simple fix... THIS will solve your prob. OR getting a header will!

End of post, question answered! Good day!

 

I explained the exact same thing to the muffler shop I went to. They refused to open up a hole and weld it up even after I asked them to. I guess it was too hard for them?