downshift at idle

Discussion in 'General Chevy & GM Tech Questions' started by trackbird, Feb 13, 2008.

  1. trackbird

    trackbird New Member

    I have a 2008 2500HD w/ 6.0 and 6 speed auto. It sometimes feels like it downshifts when I'm sitting at a stop light. The first time it happened, I thought somebody ran in to the rear of my truck. Has anyone else noticed this, and is it anything to be concerned about?
    It has 3,070 miles on it.

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