Andy, John Hervey is most likely right about your master cylinder. I had the same problem with my L/R caliper, I took off my flex line and noticed the line was full off rust. I decided to change both rear lines, and so I was now able to bleed the system. I took it out on the road and every so often the rear brakes would lock up or drag. I flushed the system again and noticed more rust in the fluid. I ended up removing the master cylinder and bench testing it, that's when I found out that the piston was sticking and the cylinder was full of rust. Replaced this and never had the problem happen again.(When I started to get the car back on the road again the brake fluid was green yes green, so I had also changed all my calipers and pads as a precaution). I recommend changing everything for safety if this car has sat for any more then a couple of years. just my 2 cents. good luck, Stephane vin2450 --- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@xxxx> wrote: > Andy, > If your pedal is all the way to the floor and the reservoir is full then I would think the master cylinder is bad. 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/