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  1. Chevy Silverado Forum (GMC Sierra)
    I’m having some trouble with my 1997 GMC Suburban k2500 with a 496 stroker. The upper A/C vents (that blow air directly on you) will not blow any air out. I have replaced the A/C controls, and the blend door actuator. While I had the actuator off, I moved the blend door mechanism with my fingers...
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