low spongy pedal

[dmac0923]

2002 Ford Ranger 4wd 4.0ltr V6 Auto/
155,000 miles
Front disc/ rear drum brakes with abs.

front rotors and pads just done
rears drums and shoes replaced approx 1 year ago

this problem has been going on for some time now, and doesnt seem to be affected by replacing new/old brake parts.

my brake pedal seems to be spongy/soft for the first half of its travel with very little braking affect noticed....but then gets a normal firm feel the second half with normal braking results.

with the engine off, the pedal is firm all the way to the top.

bad master cylinder???? usually they seep down at like a stop light...
air in the lines??? the lines havent been opened tho

 

[TooManyTrucks]

Check the rear shoes to make sure that they are adjusted to a point where they just make friction with drum. Also, it is possible that the adjustment cable may have slipped off guide and broke. If you didn't open up the system, this may be the cause of the lack of brake pedal until you push deeper into the pedal.