Dash vents

1996 with no air coming out of dash vents. Blows out defrost and floor only. I am suppose there is a mode flap or servo somewhere that has gone bad. Thanks

I had the same problem on my 98 - it turned out to be a small hole in the vacuum hose going into the firewall from the engine. No vacuum, no control of the flaps. Find the small vacuum hose that enters the interior thru the firewall on the passenger side of the car and follow it back all the way to the connection to the intake manifold. My guess is there is a crack or hole somewhere. Good luck.

Sherwood thanks for the reply. It turned out to be a bad vacuum motor that controls the vent flap.