soo i have a/c, i have heat, but they only come out of one vent: the front defrost vent. are the other vents clogged up you think?

if they are does that mean i have to completely disassemble the dash to get to the vents?

any and all help is welcome

 

The vents aren't clogged, you're vacuum system needs attention.

The HVAC control runs off engine vacuum. Check the connection at the vacuum reservoir.

 

alrightyy