A/C does not blow through center vents

[KoolPwny]

When I put my ac on max, I can feel room temp air blowing out of the vents on the dashboard and on my shins/feet.

However no air blows through the center vents which I need the most of course.

Does anybody know what it might be or a checklist of things to check out?

Thanks in advance

[GaryDoug]

Perhaps you could share some information with us first? Like make, year, model, etc. It would be best to put that in your signature so you don't have to keep typing it.

[McCauleyWB]

http://shbox.com/1/4th_gen_tech2.html#HVAC_vacuum

[KoolPwny]

1993 camaro z28 a4

[KoolPwny]

Thanks Imma check the lines when I get out of work

[KoolPwny]

How do I check the check valve?

[KoolPwny]

While checking for leaks it seems like air is escaping through here ImageUploadedByTapatalk1410967863.227601.jpg

It's not from the wires around it, but seems to be coming from the box itself. Is that normal?

[GaryDoug]

The vacuum supply hose from the check valve to the engine is inside the largest wire bundle next to your thuimb. That is probably leaking and causing your issue

.Attachment 30067

[KoolPwny]

The vacuum supply hose from the check valve to the engine is inside the largest wire bundle next to your thuimb. That is probably leaking and causing your issue

.Attachment 30067

OMG YESSSS!!! That's it! So it's one vacuum line there tht I need to replace?

[GaryDoug]

Depending on the type and size of the break, you might be able to just repair it with a short piece of rubber tubing.