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Can anyone help me with this noise? Video

Discussion in 'New Edge Cobras' started by 04TorchMach, Apr 17, 2011.

  1. 04TorchMach

    04TorchMach Member Established Member

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    I have a 99 cobra I recently bought. The car has never been low on oil since I have had it. I run 7 qrts of mobil 1 5w30. Is something wrong with the engine or is this normal sounding? Thanks for the help.

    [nomedia="http://www.youtube.com/watch?v=xbgJV0vi5lM"]YouTube - IMG_0272.MOV[/nomedia]
     
  2. Bad99SVT

    Bad99SVT Insane SVT Poster Established Member

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    i don't really hear anything out of the normal...you may just be hearing the valve train noise...they can be a little noisey since it has timing chains and all that...i think you are ok.
     
  3. 04TorchMach

    04TorchMach Member Established Member

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    I guess I should have been a little more specific. I am talking about the knocking sound. It kind of sounds like the exhaust in the video. It is not very loud but is present all the time, except under hard acceleration, I cannot hear it.
     
  4. DSGWhippedSnake

    DSGWhippedSnake Right you are ken Established Member

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    It's hard to tell in the vid since the exhaust is kind of masking the noise. My advice is don't gas it until you get a better idea of what it is lol could be anything really, try getting a better vid of the noise if you can :beer:
     
  5. Bad99SVT

    Bad99SVT Insane SVT Poster Established Member

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    +1...if you can get a better vid that would be great for us to help you out man.:beer:
     
  6. clbailey

    clbailey Active Member Established Member

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    F it, drive it till it blows!!! Then build it better.
     
  7. Darkc0bra

    Darkc0bra ....Pass Established Member

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    +1 :burnout:
     
  8. TBCobra

    TBCobra Premium Member Premium Member Established Member Beer Money Bros.

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    O buddy, if you drove it low on oil you could be in for a surprise. Describe the noise more. Is it knocking or clicking or tapping? Does it do it when the car is warm, cold or both? Does it follow the rpms?
     
  9. Hockeyman48

    Hockeyman48 Member Established Member

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    Hard to tell w/ vid sound but you may have a problem.There is a faint rhythmic exhaust pulse that might indicate problems. Perform a compression test and a leak-down test and see if this shows any problems.Could be as simple as plug/wire/etc. or major issue w/bent/burned valve/seat or valve component part. Good Luck.
     
    Last edited: Apr 18, 2011
  10. VirtualSVT

    VirtualSVT lolololololololololol Established Member

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    That's the bitch with these motors...they make tons of noise that on a normal car would have you freaking out.

    Honestly sounds normal.
     
  11. 04TorchMach

    04TorchMach Member Established Member

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    Alright guys, thanks for the help so far. I was able to get the car in the air tonight and crawl under it while it was running. I tried to get a better video but couldnt hear the sound on the videos. It sounds like it is coming from the bell housing area. More so on the passenger side. It definitely doenst sound like a rod knock or bearing. I put a screw driver on different parts of the block from underneath and cant hear anything unusual either. Anyway, earlier this week, I pulled the cops one at a time and the noise didnt go away. While I had the covers off I went ahead and changed the plugs. Kind of baffled by this. I not blowing smoke out of the tailpipes, and it hasnt used any oil. No drop off in performance either. No lights or codes. Anymore ideas?
     
  12. 04TorchMach

    04TorchMach Member Established Member

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    I did not run it low on oil
     
  13. VirtualSVT

    VirtualSVT lolololololololololol Established Member

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    I'm sticking with Standard 4V noises man.
     
  14. 04TorchMach

    04TorchMach Member Established Member

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    Update: I replaced the midpipe today with an o/r h pipe and new gasket. The knocking noise, was in fact, an exhaust leak. I have never heard an exhaust leak sound like that. New pipe on and the car sounds great.
     

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