David, Your story is similar to a problem I have experience on my other older cars. THe from brake lines deteriorate internally and cause all kinds of weird problems. these include. 1. The randomly sticking brake caliper. 2. Expanding hoses that make it seem like the master cylinder has failed. 3. Very soft brake pedal 4. Self adjusters in the rear that don't work. I really have not found an simple diagnostic to identify this problem other than age. I have considered installing steel braided lines but won't know if they work better for another 30 years. !! BOB To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/