High pitch noise.

Discussion in 'Engine, Fuel and Exhaust' started by Streetglider08, Nov 4, 2011.

  1. Streetglider08

    Streetglider08 Member

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    I just installed some new parts on my 08' glide and I have this new high pitch noise that I haven't heard before. First I installed the screamin eagle stage 1 air cleaner kit and a k&n filter. I also installed a dobeck gen3 ejk. I also removed the gas tank while doing the install of these two items. It's a little harder to pin point because I installed both things at the same time. The noise is only the first 3-5 seconds of acceleration. I also noticed that I can hear the air cleaner breathing but that is to be expected. Just wondering if that is where the high pitch noise is coming from. I also read it may be the injectors, but not a bad thing per say. Maybe something to do with the dobeck and the injectors?
     
  2. Bodeen

    Bodeen Well-Known Member Staff Member Moderator Contributor

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    I would think injectors would be very hard to hear under acceleration. I'm thinking its a new intake noise that maybe you haven't heard because it wasn't breathing as good. Does it run ok? Is it throwing any codes?
     
  3. Streetglider08

    Streetglider08 Member

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    Not sure about codes. Seems to be running fine. It's like dog whistle high pitch. If you know what I mean?
     
  4. Bodeen

    Bodeen Well-Known Member Staff Member Moderator Contributor

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    If it isn't too much trouble for you. You could put the old breather back on and see if it disappears. If it does, you'll know.
     
  5. R_W_B

    R_W_B Senior Member

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    mmmm dog whistle pitch, not sure how that sounds since I thought only dogs could hear them. But in any case I've never heard one.

    The auto-tensioners on the primary chain have been said to whine (mine does) but never heard it compared to a high pitched whistle. Maybe let the dealer test ride it and let him give you his say.
     
  6. glider

    glider Veteran Member

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    You'll get what you describe sometimes when you install the stage 1 intake. There's a number of new sounds that will appear that you never heard before that don't indicate a problem either.
     
  7. Streetglider08

    Streetglider08 Member

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    Yes that's what I'm leaning towards. I haven't had much time to do anything with it yet. I'll have to check and make sure all the bolts are tight and everything is sealed up good and tight.
     
  8. R_W_B

    R_W_B Senior Member

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    Yea if it's loose that could very well be it. I have the SE AC but I've never noticed any noise like that. Course I'm half deft and my ears ring all the time anyhow.

    I have a question, didn't your SE kit come with a cleaner element. What is better about the K&N element ?
     
  9. Streetglider08

    Streetglider08 Member

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    Well I had an accident installing the ejk. I was in a huge hurry and I accidentally hooked up the ground wire for the ejk to the positive terminal. Which held the injectors open and gas poured out of my filter that I had literally installed minutes before this happened. So rather then try to clean it I just ran out and got a k&n because it was only $15 more then the stock paper element and is reusable.
     
  10. R_W_B

    R_W_B Senior Member

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    Oh ok, that stuff happens. But maybe you can save it and let it dry out. You can always use it someday when the K&N starts to tear around the edges like they all do once they've been exposed the elements long enough.