Rattling noise infront of the passenger seat - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

Rattling noise infront of the passenger seat

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Rattling noise infront of the passenger seat

    When I get the car up to 1000 and 1500 RPM, I notice a vibrating/buzzing noise coming from under the car, infront of the passenger seat. It's not very loud (atleast, not compared to the buzzing I used to have from an exhaust clamp hitting the floor pan). I'm GUESSING it's either the cat or heat shield (from what I've read here), but I don't know how to check either theory. How can I test to see if it's either of these? I also read that GM will replace a bad cat if the car has 80k miles (or 8 years) or less on it for no charge - is this still true after I got my catback?

    Thanks in advance,
    Rob
    <b>2002 Pewter v6 Camaro</b><br />T-tops, Auto, stock GFX<br />mods: SSRA, Whisper lid, K&N filter, Borla cat-back, Pioneer HU, RF 6.5\" speakers, billet grill, clear corners, red tubing under hood, black CAMARO fill-in\'s, QTEC, GM power antenna, fan switch

  • #2
    Get under the car and hit or shake it. Had the rattle on my 94. Got it on the lift and found the shield was loose.

    Comment


    • #3
      yeah, there are two shields above and around the cat. the big one and the little one in front of it. your car really shouldnt be having cat troubles yet but heck, **** happens
      2000 3.8 A4 Pewter Camaro

      Comment


      • #4
        probably the convertor heat shields. had a similar problem with mine. the shields are fully crimped along the body of the convertor. this can lead to buzzing/rattling. the post-cat o2 sensor was also 'broken'. the crimp on the back gave way and it rattled as well as a bit of the ceramic inside. at certains rpms it would resonate and make an awful racket.

        Comment


        • #5
          Until then, turn the radio up so you can't hear it [img]smile.gif[/img]

          Comment


          • #6
            Just last week, I had my exhaust changed out and had the guy check for a rattle under the car. He found a loose connection on the cat heat shield....he retacked it...no more rattle. I'd go with the cat heat sheild...sounds like what I had going on.
            \"this isn\'t flying...its falling...with style!\"<br /> -Buzz Lightyear<br /><br /><br /> 96 bright red firebird, T-tops, monsoon CD Flowmaster catback dual exhaust <br /><br /> <a href=\"http://members.cardomain.com/joyfellowship1\" target=\"_blank\">http://members.cardomain.com/joyfellowship1</a> <br /> <a href=\"http://www.joyfellowshipchurch.com\" target=\"_blank\">www.joyfellowshipchurch.com</a>

            Comment


            • #7
              Well, after breakfast I put the car up on rhino ramps and started hitting the heat shield and I found one place I'm thinking it might be hitting the body (there's about 1mm or less of clearance between them and it made a sound when I gave a nice tug and let go). After a shower, I'm going down to Home Depot to get a self taping screw and lock-washer and try to secure the shield there. Hopefully that'll fix it.
              <b>2002 Pewter v6 Camaro</b><br />T-tops, Auto, stock GFX<br />mods: SSRA, Whisper lid, K&N filter, Borla cat-back, Pioneer HU, RF 6.5\" speakers, billet grill, clear corners, red tubing under hood, black CAMARO fill-in\'s, QTEC, GM power antenna, fan switch

              Comment


              • #8
                consider the stainless steel band clamp repair. they should have something big enough in the plumbing area to go around the cat..

                Comment

                Latest Topics

                Collapse

                FORUM SPONSORS

                Collapse
                Working...
                X