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Thread: Dash Noise

  1. #1

    Default Dash Noise

    I have a 2008 Silverado Ext Cab with a 5.3L. When I'm going down the rode at a steady pace between 30 and about 50 mph I get a sound coming from the dash. It sounds like a vibration or rattle. Almost like its a very small ball bearing shaking around in a very small area. Does anyone else get this or know what it is. I'm also wondering if it is a switch or something to tell the convertor to lock up. Driving me nuts
    Gary

  2. #2
    Jr. Mechanic
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    Dec 2007
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    Lincoln Nebraska
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    Default

    Try removing the black plastic engine cover, (it snaps into rubber grommets) then go for a ride and see if it's gone. My 08 Sierra did the same thing and it was a wiring loom rattling on the engine cover. I used wire ties to secure everything and the rattle has been gone ever since.
    2013 Sierra Crew Cab.
    Bob.

  3. #3

    Default

    I get a rattle in my 99 Seirra that seems to be right in the middle of my dash. Sounds about the same what you have. I will try the same suggestion though.

  4. #4

    Default

    I have the same exact noise from the dash of my 08 1500 4x4. I took it to the dealer a while back and of course it would not reproduce the noise while it was there. I am going to try taking off the engine cover also.

    Bobby - North Carolina
    2008 4x4 5.3L V8
    6" Suspension Lift and 1.5" Body Lift
    20x9 Ballistic Jesters w/35" Toyo Open Country MT's & 1.5" rear wheel spacers
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    Tint, Line-X bedliner, Window visors, Rear wheel well liners
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    Powder coated front and rear bumpers

  5. #5
    Jr. Engineer lsutoms's Avatar
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    baton rouge louisiana
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    i seem to have this noise that ya'll are talking about in my 09 ext cab... except mine comes more often on my drivers side column it sounds like.... i cant figure out what it is....
    "I'll Sleep When I Die"



    2009 Chevy Silverado LT1
    295/70/17 Toyo MT's
    2" rough country leveling kit
    CAI
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    custom tune
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    2 12" Kicker CVT's
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  6. #6
    Sr. Engineer
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    May 2009
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    Manitowoc, WI
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    Default

    The trim around the windshield can make a rattling noise, its really noticeable if you have a bug shield on the truck. A little silicone adhesive under the rubber molding on the sides of the windshield will stop it if thats whats causing it.

  7. #7
    Jr. Apprentice mkruluts's Avatar
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    Jun 2009
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    Pittsburgh, PA
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    24

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    My truck has a knock sound that seems to come from the dash as well... It only happens in cold weather and I just assumed it was the tubes and hoses under the cold conditions...

  8. #8
    Jr. Mechanic
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    Default

    A friend of mine has a 99 gmc and his had the plastic part in front of window that rattled going donw the road. Might be the same thing

  9. #9

    Default

    its pretty common for the front dash trim (the long piece under the windshield w/ the sunload sensor) to rattle. pop it off and put tape around the retainers. you want a "bushing" between the panel and dash
    GM TECH

    05 silverado shortbed

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