Power Booster??

my brakes aren't working normal. loss of pedal pressure, but it comes back if i pump the brakes. MC is ok, although has that normal little seal seapage its always had....all brake lines are all fine...fluid is fine too. so, any thoughts? confirmations? offers to buy my truck? i'm tired of its crap. althoughby the time i get done fixing problems, I might as well keep it since it'll all be rebuilt

ojhhhhh btw, my cdchanger is crappin on me too