i have a 92 buick skylark and the heat only blows out of the one slim door whats on 1992 Buick Skylark

the problem and how do i fix it?
the blower motor is blowing but something is blocking the air flow. someone said my slim door isn>t opening. where is it located?

Asked by for the 1992 Buick Skylark
i think you mean your blend door. its under the dash with your heater box assembly.this may be difficult to find.ck for vacccum leaks to your a/c/heater control assembly