Some of the air handling dampener motors are vacuum controlled and some have a small electric motor. If it's a vacuum controlled dampener, you probably have a vacuum leak, faulty vacuum diaphragm or disconnected vacuum line. If it's an electric dampener motor you have a bad connection, faulty feedback switch or faulty motor assembly.
thats because your blower went out
Either you need to pen your vents or there is some vent obstruction.
My ac blows only in the defroster and not any of the other vents i have 98 ford windstar 3.8 v6
It should blow through the floor vents. Modern vehicles generally use movable baffles in there HVAC systems, to direct air flow where the controls indicate. If the controls allow airflow to the floor, but nothing flows out, there is a malfunction between the control switch and the actuator that directs the flow.
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Find the vacuumline that goes from the intake to the resirvoir and from the resirvoir to the inside of the cab. It isn't connected.
some thing is probley cloging the vents take it appart and ckeck.
How easy is it to replace head gasket on 1994 firebird lt1 motor
your switch cable might be broke you will have to remove your dash
I have exactly the same problem on my 2000 Still looking for the answer
If air blows from defroster only, the vacuum line to the blend door may be broken. You can access most of it under the hood.
If it blows only out the defroster vents : then check for Vaccume leak Rick ASE L-1 Master TransMichigan.com