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  1. #1

    Default light flickering?

    all the light on my truck flicker. i can see the tensioner pully bouncing. do you think i need to replace that or just the belt.
    2005 silverado 1500 z-71.
    fabtech 6" lift.
    air raid filter
    throttle body spacer
    4.56 gears.
    rancho rs5000 shocks.
    tow mirrors.
    american racing rims.
    firestone destination a/t 325/65/18.
    due to inflation your 2 cents no longer matters.

  2. #2
    Master Mechanic TexasEdition's Avatar
    Join Date
    Dec 2010
    Location
    Texas Hill Country
    Posts
    656

    Default

    I'd remove the belt and spin everything by hand to see/hear if anything grinds or sounds rough, has excessive play, etc. Your alernator, idler pulley or something else may be going out which is causing the belt to not travel smoothly.

    2009 Tahoe LTZ (Blue Granite ext/
    light & dark cashmere int)
    5.3L Vortec V8 6 speed trans.,
    HD towing, Leather interior,
    20" chrome wheels, chrome door
    handles/grill/mirrors, & CD/DVD w/Bose.
    2010 Silverado LT Texas Edition
    (Black ext/Light titanium-ebony int.)
    5.3L V8, 6 speed trans, HD towing,
    20" chrome wheels, chrome door
    handles/grill/mirrors, CD, Raptor 5"
    Magnum nerfs, & Speedliner bed liner.

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