I have a really bad rattle at about 3k, it's sounds like it's coming from the header. Right now I have the entire exhaust (including header) off of the car. Would it be bad to start the car w/ no exhaust or header?? This could tell me if it's the exhaust or maybe something worse like the trans. Any help is appreciated, Thx

 

Bolt the header on, with no headshield and go from there.

 

Don't start the car without the header, you'll burn up your exhaust valves.

I would suspect either the heatshield or a crack in the header is causing the rattle. Do what Dave said above.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eva01 &raquo;</TD></TR><TR><TD CLASS="quote">Don't start the car without the header, you'll burn up your exhaust valves.

I would suspect either the heatshield or a crack in the header is causing the rattle. Do what Dave said above. </TD></TR></TABLE>

Thanks for the info guys, I figured there would be some consequences to starting it w/o the header. I'm gonna go swap the stock one on and fire it up.

 

check your O2 sensor it may be.

 

My DC sports "header" vibrates at 3k then stops,and now the cat's rattling.


Have you checked the cat???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rcar97 &raquo;</TD></TR><TR><TD CLASS="quote">check your O2 sensor it may be.</TD></TR></TABLE>

x2

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by capzuk &raquo;</TD></TR><TR><TD CLASS="quote">My DC sports "header" vibrates at 3k then stops,and now the cat's rattling.


Have you checked the cat???</TD></TR></TABLE>

Not yet, I'm working on the header right now, DC sports when it comes to rattling issues

 

guys, if you've EVER touched and exhaust heatsheilds in the past, chances are they will rattle. there's really no need for ANY of them. take them ALL off and be rattle free

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JUN.R &raquo;</TD></TR><TR><TD CLASS="quote">guys, if you've EVER touched and exhaust heatsheilds in the past, chances are they will rattle. there's really no need for ANY of them. take them ALL off and be rattle free </TD></TR></TABLE>

I agree for the most part. But my heat shields dont rattle. And I have them all....

 

what kind of header, my mugen 4-1 rattles at 3-4k.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by walker111 &raquo;</TD></TR><TR><TD CLASS="quote">
I agree for the most part. But my heat shields dont rattle. And I have them all....</TD></TR></TABLE>
give it time grasshoppa! you running the factory exhaust??