hey guys this is what my problem is, my AC works but it only comes out my defrosters, this is the best way i can explain it.

 

The a/c vac line is cracked or broken. Look at the HVAC tree on the driver side fender near the firewall. It has lines running to, I believe, brake booster, interior HVAC controls, and I think p/s pump?? The a/c one is the middle one I believe. You can buy some hard line for like 10 bucks for 6' I believe from Advance. I just used heatshrink and fused together some lines to make it work.

 

Or if you have been doing some under dash work, there is a vacuum check valve, or actually a couple of them in and around the heater core box. You might have accidentaly foced it off or it might have come off.

 

Ok thanks guys for the info.

 

or the big plastic ball under the passenger fender inside the wheel well.

 

I thought the big plastic ball was for the cruise control assembly?

 

The one I'm talking about is for the a/c vents. It holds vacuum for the selector switch. I had to replace it on my 88 GT years ago. Took forever to find the problem back then.

 

It's a vacume line on line for the AC. Most likely on the passenger side firewall right before the line goes into the firewall. But I don't know anything.

 

i never use a/c so yeah sorry just listen to what they ^ said.

 

Another thing to check is the little one-way valve that's inline somewhere close to the vac tree. If that goes bad it's just like having a vac leak.