A few question about the brake booster/servo: My braking is the pits: I can slam the brakes on, hold with all my force and I will not lock the wheels up. The car does stop, but it's nowhere near what it should be in terms of rate of deceleration. This is at around 15mph in my driveway. At higher speeds, I do slow down, but again, it seems really poor and I have to apply a LOT of pressure to get decent braking. I'd be screwed if I had to do a panic stop at speed. All brake components are good/new: master cylinder, calipers, rotors, pads, fluid, all is properly bled, no air in the M.C. I know the DeLorean brakes are not the greatest, but this is terrible. Would a bad servo cause weak braking? I removed the vacuum hose from the servo and there is nice suction from it when the engine is running. I also did a crude test of the check valve by connecting separate, short hose to the check valve inlet and I cannot blow through, but I can draw (albeit with difficulty and not freely), indicating the check valve is functioning, right? I do hear a faint hissing around the servo, but it doesn't sound like a leak - more like the vacuum noise inside the hose. What else can i check? How do I check if the actual servo/booster itself is good? The manual does not seem to be much help here - it doesn't even show where the other end of the vacuum line goes in the engine bay... Thanks... - ed -- 1982 DMC-12 [11594] 1986.5 928S 1990 Coupe Quattro 20V 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/