I’ve been using this forum often for a lot of useful information! Wanted to thank all the helpful car people. I haven’t been able to find the answers to my questions, sorry if it’s been already mentioned!

This past year my heat/ac started to only blow through my defrost vents. I followed the vacuum tree and found the blue colored line cut on the firewall? close to the intake? (Still learning about all this lol hope I’m saying it right) I was looking for the other end and found a random...

1995 Mustang GT help. Vacuum lines