Auto Air Conditioning & Heater Repair: a/c repair, chevy lumina, vacuum line

Question
my 95 chevy lumina a/c works only on the floor vents,
no air comes out of the front vents.how can i fix this?

Answer
You have a problem with the VENT door controls of which is going to take an experienced technician to perform some tests.

What mechanical work or ANY kind of work has been performed on the vehicle recently ?. As most problems that occur after a recent repair was made can be traced back to the area of where the repair was made as a vacuum line may have been knocked loose or a wire connection came loose, Look around in the area where work was performed..

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