05 Suburban blows cold then hot air on driver's side vent

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by Treadnmud, Jun 19, 2013.

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  1. Treadnmud

    Treadnmud New Member

    While driving or sitting still, ac blows really cold then all of a sudden gets hot on drivers side. What causes this?

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