I forgot to update this.
I found the cracked vacuum line, it runs from under the battery into the firewall. (My cracked battery had oozed acid onto it.) I took the line off (unrepairable, too many cracks) and took it to dealer but their is no exact replacement. Instead they gave me a rubber (not plastic) hose slightly larger, but slipped over the ends of line where I cut it.
**One word of advice, do not try to find where the line connects at the firewall. Instead cut the line outside the firewall and make your splice there. Problem I had was I tried to find where the joint was inside at the firewall, and well the T-joint fell down inside the firewall when I disconnected it. Luckly, I was able to fish it out after about 30mins with a set dental forceps and a lot of verbal encouragement. But trying to hold the T-joint and connect the new line was a royal pain too. Don't do it, what was a 5min fix ended up taking about an hour. Just cut the line and leave enough so the new hose can slip over it. | 
