I've already fixed the vacuum line that runs across the intake manifold... now I'm baffled

pull the inner finder shield and check it at the canister that is where mine broke at.

if its a second gen and you get no air from the vents and only defrost its most likely a broken blend door actuator. no only does the blend door move a flapper from hot and cold air, but it moves a second flapper for your duct work air direction!

Check the blower motor behind the glove box. Remove the bottom panel, and wiggle the orange and black wire. Common problem. Check the tech articles. There's a write up.

it's for a gen1, guess I should mention things like that

I haven't had the liners in for a while now, i had glanced at the canister and all seemed to be well when I looked earlier

I went out and double checked, sure enough the line had cracked right at the connector, everything is working as it should now, thanks

thats good glad u got it fixed. I didnt know if it was a gen 1 or 2.