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Repair guides and support for the third generation of C/K pickup trucks.

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Why does my ac blow only through heater & defros vents

My 1986 Chevy S10 a/c blows through the bottom heater and top defrost vent, but not through dash vents.

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The actuator isn't working. You should be able to manually move it, assuming you can see it from the passenger side, under the dash.

The cause can be mechanical binding or something is jammed in there to prevent it from moving.

The other possibility is that the selector control isn't working. Sometimes, disconnecting then reconnecting it will solve the problem. You should be able to find instructions to disassemble this on the internet.

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the fan dont work at all

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Hi cynthia.horman,

What is the year, make and model of your vehicle?

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morales will be eternally grateful.
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