a/c

i have a 96 s10,air is cool,but does not come out of vents,someone said it has to do with vaccum lines,is this true?how do i repair?thank you

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In earlier models of the S-10 the vent position was controlled by vacuum from the motor, and air coming out from the heater ducts under the dash only was a symptom of a leaky vacuum line or fitting. However, in 1996 the air valves (flapper valves) were controlled by electic servos that moved the flap to send the air to different vents. It's not uncommon that after nearly a decade you would build up enough dirt and gunk on the lip of the flapper valve to cause it to stick in one position, or that a servo would die or get stuck. You're going to have to have someone open up the air box and look at the valves and servos.
Cheers - Jonathan

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