i have a 94 acura integra with an LS b18b1 motor . i get alot of rattling underneath my car so i got it checked out and it was a loose o2 sensor that connects to my piping. i tightened it and next thing you know, after i gun it a couple times it starts rattling again... and it seems to rattle at a specific RPM, 1.5 K. what would i do to fix this? new o2 sensor? or new bunghole or wahtever for the o2 sensor to go into.?? plz help this noise is so annoying..

 

does it only rattle onceu hit 1.5 k then stop?

 

new bunghole, lol, are you sure it's not a heat shield?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSRVTEC1 &raquo;</TD></TR><TR><TD CLASS="quote">does it only rattle onceu hit 1.5 k then stop?</TD></TR></TABLE>

when i hit 1.5k it rattles, then at like 1.8k or 2k it stops, and at 1k it doesnt rattle... so basically whenever the rpm gauges passes / hits 1.5k area..

 

could be the webbing in your cat breaking loose or it could be the heat sheild. rattles are a bitch.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InfamousDC2FI &raquo;</TD></TR><TR><TD CLASS="quote">could be the webbing in your cat breaking loose or it could be the heat sheild. rattles are a bitch.</TD></TR></TABLE>

i dont have a cat, its a Straight Pipe. kinda like a test pipe but juss 2.25 pipe with a hole for o2 . no heat shield either.

 

do you have any aftermarket sway bars or an h-brace that the exhaust may rattle against? Im just trying to think of things that it could be...but I dunno....you should get up under there and beat on the test pipe part of your exhaust and see if theres loose material in the tubing and see if it rattles.....

Check your bolts to make sure there tight too....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InfamousDC2FI &raquo;</TD></TR><TR><TD CLASS="quote">do you have any aftermarket sway bars or an h-brace that the exhaust may rattle against? Im just trying to think of things that it could be...but I dunno....you should get up under there and beat on the test pipe part of your exhaust and see if theres loose material in the tubing and see if it rattles.....

Check your bolts to make sure there tight too....</TD></TR></TABLE>

yeah its the o2 thats rattling, im pretty sure of it...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JesDM &raquo;</TD></TR><TR><TD CLASS="quote">when i hit 1.5k it rattles, then at like 1.8k or 2k it stops, and at 1k it doesnt rattle... so basically whenever the rpm gauges passes / hits 1.5k area..</TD></TR></TABLE>
i bet you are perfectly fine. ive been in a few integras including mines that makes a rattling sound at a certain low RPM

 

Sounds like a bad bung hole to me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSRVTEC1 &raquo;</TD></TR><TR><TD CLASS="quote">i bet you are perfectly fine. ive been in a few integras including mines that makes a rattling sound at a certain low RPM</TD></TR></TABLE>

LOL no way am i fine.. this is not some normal little rattling noise, this is like "Hey u have a lot of change in ur exhaust system??"