2004 LLY Duramax Glo Plug

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by skeeter62, May 25, 2007.

  1. skeeter62

    skeeter62 New Member

    Until recently, the glo plug light would only be on a couple of seconds when I start my truck for the first time each day. Now it stays on 20-30 seconds before going out. After the engine warms, the glo plug light just barely flashes when I turn on the ignition. Should I be concerned about how long the glo plug light is on when I turn on the ignition the first time each day? Thanks.
     

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