Why fading brake pedal

Noticed a forum on Saabnet where several talk about the vacuum line to brake booster, that fits into intake manifold under engine cover may be leaking. This line apparently shared with window washer. Can a technician use a vacuum tester to see if line is pulling recommended vacuum?

We have seen failed vacuum brake boosters, but you then get a very hard pedal, and no brake assist (takes a lot of effort to stop). Let us know if you want a tech to look at it. Ward

Ward, any chance I might stop by your shop either tomorrow or Thursday morning around 9:00 or 11:30 to have a tech examine what I have described as a continuing fading brake pedal, as more pressure is applied? I live in Stamford and have a need to be in Milford either tomorrow or Thursday and thought might accomplish two objectives in one trip. I could then schedule later repairs if your tech finds an issue.

Hi there, Sure stop by, and a tech will take a quick look. Either day or time is fine. See you soon, Ward

Thanks Look forward to meeting a Saab expert.