Whistling noise at highway speeds

Discussion in 'The ragtop shop' started by Weisguy184, May 4, 2022.

  1. Weisguy184

    Weisguy184 Well-Known Member

    Hello, I have a 1970 GS convertible. It has a high pitched whistle at highway speeds with both the top up and top down. I tried taping off all of the windshield moldings and it was still there. Any thoughts? Thanks, Marc
     
  2. Max Damage

    Max Damage I'm working on it!

    This kind of issue is particularly hard to troubleshoot...

    Sometimes having a young person with good hearing around helps ;~)

    I am guessing some of the Pro technicians on here have ideas? hopefully they can chime in.
     
  3. Brad Conley

    Brad Conley RIP Staff Member

    I solve that problem by removing my hearing aids....
     
    STAGE III, richopp, CCM and 2 others like this.
  4. GSX 554

    GSX 554 Gold Level Contributor

    I solved it by turning the radio up Brad
     
    Brad Conley likes this.
  5. telriv

    telriv Founders Club Member

    In the past I had a whistle noise that drove all of us crazy. After a period of time & MUCH frustration turns out it was the way the direction of the sleeves on the tie rods position. Used some duct tape to verify & the whistling was now gone.
    Worth 30 seconds of your time.

    Tom T.
     
    Max Damage likes this.
  6. 2manybuicks

    2manybuicks Founders Club Member

    Do you have 15 foot boards stuck sideways out the windows? Had whistling noise from that myself recently...
     
  7. 2manybuicks

    2manybuicks Founders Club Member

    At least with your 70 GS the problem can be solved. With an 87 GN it is a "design feature".:rolleyes:
     
    DaWildcat and pbr400 like this.
  8. CJay

    CJay Supercar owner Staff Member

    It's a combination of dried weatherstripping and side glass thst needs to be adjusted after 50 years.

    As thry say, if it's made with an adjustment, eventually it will need one
     
  9. Fred Hickey

    Fred Hickey Founders Club Member

    Have a passenger door window hardware rattle. As the temperature changes I have to adjust the pressure on the window crank. I also have a rear window crank handle that pops off when I step on the accelerator. If I didn't like how I looked driving by the glass store front at the bank, non of this would be worth it.
     
    Brett Slater likes this.
  10. Electra Bob

    Electra Bob Well-Known Member

    Check for a whistle... :)
     
  11. Weisguy184

    Weisguy184 Well-Known Member

    The whistle is there with the windows and top down.
     
  12. Weisguy184

    Weisguy184 Well-Known Member

    PS. No boards out of the window, no cowbell and I don’t have hearing aids. LOL
     
  13. rkammer

    rkammer Gold Level Contributor

    Big Laugh (Tiny).jpg
     
  14. dynaflow

    dynaflow shiftless...

    ...front or rear, if rear, could be trunk weatherstripping. Since convertibles are open into trunk, at speed, air pressure tries to vent to lower pressure behind car, usually at deck lid seal. Adjust or replace, depending...
     
  15. Weisguy184

    Weisguy184 Well-Known Member

    The noise is coming from the front. Sounds like it may be coming through the cowl.
     
  16. 69 GS 400

    69 GS 400 Well-Known Member

    Coming from the hood to cowl foam? Hole or gap not sealing?
     
  17. Weisguy184

    Weisguy184 Well-Known Member

    I don’t recall a hood to cowl foam?
     
  18. 69 GS 400

    69 GS 400 Well-Known Member

  19. 69 GS 400

    69 GS 400 Well-Known Member

    This is missing from your car? I think all the major parts retailers sell it and Todd could probably also. Plus he might be able to know which brand is best
     
  20. Weisguy184

    Weisguy184 Well-Known Member

    I’ll call Todd. Thanks I believe that will fix my problem.
     

Share This Page