Faint oscillating noise/whine at 65+ mph

Discussion in '100-Series Cruisers' started by Hi Trek, Jul 25, 2005.

  1. Hi Trek

    Hi Trek

    Messages:
    26
    Likes Received:
    0
    Joined:
    Jul 13, 2005
    Location:
    Bay Area, CA
    Hello all,

    I've searched the boards fruitlessly for any information and hopefully someone may have a simple answer before I visit the stealership for further diagnosis.

    When I hit around 65mph, my new-to-me '01 LC starts to have a very faint, oscillating pitch and I can't tell exactly where it's coming from.

    As my speed increases, the pitch gets higher but the oscillation frequency remains the same. The sound disappears at 80+mph or it could be that the pitch gets so high that I can't hear it anymore. Also, I notice that the sound seems to only appear if I take my foot off the gas; when I step on the gas, the sound goes away.

    Downshifting or disengaging the OD has no effect.

    Since the pitch changes with speed but not when I downshift, I'm hoping it's not related to the transmission at all and maybe a wheel bearing or tire noise. Definitely not normal, right?

    Thoughts or ideas anyone? I've got about 90K on the clock if that helps any.

    Thanks a lot for any input.
     
  2. NMuzj100

    NMuzj100

    Messages:
    3,480
    Likes Received:
    39
    Joined:
    Sep 25, 2004
    Location:
    Gleneagle, CO
    Have your front wheel bearings received a repack? (recommended at 90k) If not then a repack with inspection would seem to be the first logical step.
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.