EATC module?

Thank you for your answer. Would these vacuum lines be under the dash or under he hood?

The supply would go from under the hood to the dash controls. From there multiple lines under the dash for the vacuum actuators. Sorry to say but the leak could be in any one of these lines, the dash controller, or the actuators themselves. If you have a vacuum reservoir under the hood it could be leaking there or the line to it also. I have traced down leaks with a hand vacuum pump before, but it it tedious and time consuming.

Thank you so much for your help. I really appreciate it. It looks like I have a fun job ahead. John