1997 Gmc Sonoma Gerry 2012 Using Heat Air Air Comes Out Windshield Dash Vents

1997 GMC SONOMA
125,000 MILES
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Gerry 2012:
When using heat/air the air comes out at windshield but not the dash vents or floor vent but fan and heat does work eventually. What is the problem for directing the air flow and how do I fix it??
Dec 11, 2012 at 4:54 AM
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HMAC300
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check your actuators in heater, generic pic enclosed.
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Dec 11, 2012 at 6:34 AM
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