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Knocking exhaust noise

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by FstStig, Feb 13, 2012.

  1. FstStig

    FstStig Diagnostician

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    Hey Guys,

    OK New problem, since yesterday my exhaust has developed a weird knocking sound. It is doing it in every gear, but it isn't consistent. I thought it may of been the rubbers at first, so I replaced the figure 8 ones at the back as there was only 1 holding it and it was looking worse for wear as well. But still with 2 new rubbers and the ones near the catback are still fine, I' am still stuck with this noise... Have uploaded a video to Facebook for all to see.

    Facebook

    Goes for about 40 seconds and the sound that it makes doesn't come on until about 20 seconds or so.

    Thanks
    Black_Stig
     
  2. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    The best way to check to see if your exhaust is knocking is to get under the car and shake it around and see if it hits anything.
     
  3. FstStig

    FstStig Diagnostician

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    Thanks NAAF. Ended up finding what it was. All fixed now :)
     
  4. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    What did it end up being?
     
  5. FstStig

    FstStig Diagnostician

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    It was hitting on the old hanger for some more exhaust mounts. Wasn't being used as my 2.5" doesn't have extra mounting points for the mounts. :)
     

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