After 3-5 pumps with the engine off the brake booster reserve will be gone and the pedal will get hard that is normal.
You say the pedal is soft but how soft is it? Like half a inch and then it is hard? Or soft the whole time? Have you tried rolling and stopping?
You say the pedal is soft but how soft is it? Like half a inch and then it is hard? Or soft the whole time? Have you tried rolling and stopping?