Mechanics

DASH VENTS

Chevrolet Astro

97 CHEV ATSRO. THE FAN MOTOR WORKS PROPERLY AT DIFFERENT SPEEDS AND TEMPERATURES, HOWEVER THE AIR WILL ONLY COME FROM THE DEFROST VENTS ON TTHE TOP OF THE DASH. CAN'T GET AIR FLOW FROM DASH VENTS OR LOWER HEAT VENTS, NO MATTER WHAT DASH SELECTION THE KNOB IS IN. IS THERE A DAMPER OR SOMETHING THAT COULD BE STUCK IN ONE POSITION, CAUSING AIR FLOW TO DEFROST ONLY?
THANKS IN ADVANCE.
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9DP9
May 5, 2007.




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