Air Condition blows out floorboard.

[nerd4life]

Well, for awhile now whenever I press on the gas just hard enough, my AC, or vent, will blow out towards the feet for a bit, then return to the vents toward the face. I know this has to do with a small tube under the hood and have never bothered with it.

Now, 95% of the time the AC, or whatever I have on, blows towards the feet. Could this be that same tube that was causing the problem before or is it a different problem?

BTW, 98 Z28 coupe.

Thanks.

[99PontTA]

the vacuum reserve tank is bad...have it checked or replaced.It reserves vacuum pressure so when you step on the gas hard and engine vac is low there is a reserve that kicks in and keeps a steady vacuum so the AC controls stay working properly.Without enough vacuum the vacuum operated air control doors are closing to default positions.

[nerd4life]

Thanks

hmm, any ideas on how much that may cost to replace ?

[99PontTA]

welcome...be sure the hoses are not cracked or broken going to the tank or ac...that will cause it also

[nerd4life]

Yea, one of em is broken that passes right under the battery.

I had it fixed awhile ago, and it cracked again. But it recently seemed to get worse so I'm assuming something else went wrong.