why does my A/C on blow through the defrost? on 2000 Ford Mustang

Why does my A/C only blow through my defrost no matter what setting its on? it blows hot and cold but only through t he defrost.

by in Buchanan, GA on June 08, 2010
2 answers
ANSWER by on June 08, 2010
there is a small vaccuum line under the hood back by the firewall in the center that may be off or broken. Roy
ANSWER by on August 09, 2010
maybey becuse the battery is low cuse my did thate 30 miutes latere just cahrge battery man

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