bump,bringing this thread back up as i started my bird the other day for the first time this year and the pedal went to the floor with the same vacuum sound John had.I took the booster off and am going to order a new one (3 yrs old) but after reading this i'm wondering if i need a master cylinder too! (don't know how old it is)
Harry 69 Firebird


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1969 firebird 350/auto
2012 mustang v6 (wifes car)
2012 jeep compass (winter vehicle)
2008 dodge ram 4x4 Hemi