Strange Noise

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by Silver Chevy, Nov 19, 2011.

  1. Silver Chevy

    Silver Chevy New Member

    Has any on notice when driving on the highway over 60 a strange noise, coming from around the top of the windshield.. sounds like hundreds of stones,,,,
    Last edited: Nov 19, 2011
  2. Silver Chevy

    Silver Chevy New Member

    Ok ,,, been doing some looking around through the posts,,,, Is this sound I hear coming from this vent that everyone is talking about
  3. Pikey

    Pikey Moderator Staff Member

    By the "vent" do you mean the aspirator? The quarter size speaker looking thing above your head in the head liner? Those do go bad. They are easy to pull apart, clean, and lube.
  4. Silver Chevy

    Silver Chevy New Member

    No this is around the whole top of the windshield,,, sounds like hundreds of stones hitting the windshield,,, faster I go the more its there
  5. SurrealOne

    SurrealOne Former Member

    Wind coming through a bad seal, maybe? That would explain the increase in volume/sound as you drive faster...
  6. Sierraowner5.3

    Sierraowner5.3 New Member

    try pulling of your wipers and bug shiled if you have one, sometimes those can mess with airflow and make odd noises.

    Alex
  7. TonyS

    TonyS New Member

    I have a bug shield and a similar noise. In my truck it sounds like it is at the top of the windshield on the passenger side. Similar sounds to when rain droplets fly off the hood and hit the windshield.
  8. Silver Chevy

    Silver Chevy New Member

    Tonys ,,, you might just have ,,Thanks all ,,, I'll try each thing
  9. RedneckRucker16

    RedneckRucker16 New Member

    I had to have my windshield resealed. I had a bad wind noise over 45mph
  10. jfeezie

    jfeezie New Member

    I just noticed a similar noise this morning on my way to work. Almost sounded like radio static coming through the A pillar speakers but I turned the radio off noise persisted. Just installed a WeatherTech bug deflector a few days ago, wondering if that could be creating the noise...
  11. ndbf

    ndbf New Member

    Had the same problem on an 08 Silverado after I put a bug shield on. It was comming from the side windshield moldings. Had to put double sided tape to stop it. The GM supplier of the bug shields knows of this problem and instructs the use of tape.

    Ken
  12. Silver Chevy

    Silver Chevy New Member

    Hey sorry guys ,,, bug sheild,, wippers, will come off tomorrow and will see
  13. audible

    audible New Member

    I have the noise toooooooooooooooooo

    ................I have a bug shield and that annoying noise too above 60-65mph. I just got my truck and it drove me nuts on way to work this morning. Let me know what your tests reveal. If it gets ride of the noise I'll be happy to trash bug guard or sell on Craigslist.

    Thanks,
    Audible
  14. ndbf

    ndbf New Member

    The way I did it was to put electrical tape between the rubber gasket and the wind shield to see if it solved the problem. The test worked so I taped it.
  15. jfeezie

    jfeezie New Member

    Been doing some research on this topic and I've found a fix! Looks like there is actually a service bulletin related to this.

    TECHNICAL
    Bulletin No.: 08-08-48-003F
    Date: April 06, 2011
    Subject: Tapping, Clicking or Ticking Noise at Windshield Area (R&R Right and Left Windshield Side Reveal Moldings to Add Double Sided Tape)
    Models:
    2007-2012 Cadillac Escalade, Escalade ESV, Escalade EXT
    2007-2012 Chevrolet Avalanche, Silverado, Suburban, Tahoe
    2007-2012 GMC Sierra, Sierra Denali, Yukon, Yukon XL, Yukon Denali, Yukon Denali XLSupercede:
    This bulletin is being revised to add model years. Please discard Corporate Bulletin Number 08-08-48-003E (Section 08 - Body and Accessories).Condition
    Some customers may comment on hearing a tapping, clicking or ticking noise at the windshield area. This condition occurs more frequently while driving at highway speeds and could be exaggerated on vehicles with front bug guard deflectors.
    Cause
    This condition may be caused by air/wind causing the windshield side reveal moldings to move, generating a noise.
    Correction
    Remove both windshield reveal moldings, add double-sided tape and re-install the moldings following the steps below:
    [​IMG]

    [TABLE]
    [TR]
    [TD]1.[/TD]
    [TD]Using tape (1) or a grease pencil, mark the position of the inboard edge (2) of both left and right reveal moldings onto the windshield, following the contour of the molding.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]2.[/TD]
    [TD]Remove the left and right windshield side reveal moldings. Refer to Windshield Side Reveal Molding Replacement in SI.[/TD]
    [/TR]
    [TR]
    [TD]3.[/TD]
    [TD]Being careful not to affect the tape or grease pencil marks, clean and prep the glass at the seal interface with Glass Adhesion Promoter, P/N 12378555 (in Canada, use 88901239).[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]4.[/TD]
    [TD]Apply 3M Automotive Adhesion Promoter 06396, or equivalent, to the underside of the reveal molding seals.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    Tip
    An approximate 600 mm (24 in) length of tape should allow for overlap at the top to be trimmed back leaving a tail of release liner (1) and, at minimum, should reach the fender cut line at the bottom.[​IMG]

    [TABLE]
    [TR]
    [TD]5.[/TD]
    [TD]Apply a 600 mm (24 in) length of 3M Automotive Acrylic Plus Attachment Tape 06386 (1.14 mm (0.045 in) thick x 6.35 mm (0.25 in) wide), or equivalent, to both sides of the windshield. Ensure the tape (1) position is centered between the windshield edge (2) and the tape/grease pencil line (3). Do not remove the release lining from the tape yet.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]6.[/TD]
    [TD]Reinstall the reveal molding to one side by sliding the molding downward and ensuring that the top lip is engaged at the upper edge of the windshield.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]7.[/TD]
    [TD]Install the fasteners to the reveal molding, starting from the top. Refer to Windshield Side Reveal Molding Replacement in SI.[/TD]
    [/TR]
    [TR]
    [TD]8.[/TD]
    [TD]Lifting the top edge of the reveal molding, grab the tail of the release lining and pull downward removing the lining.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]9.[/TD]
    [TD]Press or roll the reveal molding against the windshield ensuring adhesion of the tape to the glass.[/TD]
    [/TR]
    [TR]
    [TD]10.[/TD]
    [TD]Repeat steps 6-9 on the opposite side.[/TD]
    [/TR]
    [TR]
    [TD]11.[/TD]
    [TD]Remove tape or clean the grease pencil marks from the windshield.[/TD]
    [/TR]
    [/TABLE]
    [​IMG]

    [TABLE]
    [TR]
    [TD]12.[/TD]
    [TD]If positioned correctly, trimming of the double sided tape should not be necessary, however inspect the reveal moldings for any tape not covered and trim off any exposed tape.[/TD]
    [/TR]
    [/TABLE]
    Important
    After taping the windshield reveal moldings, avoid washing the vehicle as well as excessive contact with the windshield reveal moldings for a minimum of 72 hours.Parts Information
    3M(TM) products may be purchased through your local distributor. Information about 3M product retailers in your area may be obtained by calling 1-866-364-3577 (U.S. and Canada).
  16. audible

    audible New Member

    Morning.................any change or new information for us?? Thanks:neutral:


  17. audible

    audible New Member

    Bump...anyone? The noise is annoying on a $30k truck.
  18. old school guy

    old school guy New Member

    I agree with the bug sheild had a brand new 99 made the same kind of noise remove bug sheild noise went away
  19. Silver Chevy

    Silver Chevy New Member

    No change so far still working on it,, I'm going to tape the top of the windshield
  20. Silver Chevy

    Silver Chevy New Member

    I taped the top of the windsheild noise is going,, so off to the dealer on Monday,,,, son of a bitch,, I can't believe it

    ---------- Post added at 05:39 PM ---------- Previous post was at 05:35 PM ----------

    I taped the winshield and sure enuff no noise,, so off to the dealer on Monday,,, I also have Tire sensor that 10lbs off ,,,, always something

Share This Page