After researching past posts on my A/C problem ( blows the majority of the air through the defrost vents instead of the front vents)...am I right to assume that a tear in the A/C Pod diaphram is the likely culprit or a loose vacuum hose???

Hot as hell here in Vegas...gotta fix my "Tuna Boat" !!!

Is this a DYI weekender or qualified A/C shop fix?

Most Respectfully,
Michael