You have air in the lines. Time to bleed brakes. Also check rear brake pads/shoes for excessive wear.
excessive heat caused by using them too much brakes out of adjustment.
It could be air in the brake line, or the brakes getting too hot from too much friction by using the brakes on a steep hill or riding the brakes, or there could be a problem with the master cylinder.
Too much
I have never had to spent that much to have my brakes replaces! They can be very expensive, but I think $600 is too much. I would look at other places.
Cheap brake pads or they have too much metallic particles in them.
too much....mines are squeling now! :(
you must be using the brakes too much, start using the handbreak more please.
Yes, they can. It tends to happen more rapidly in heavy duty vehicles with air brakes, but it can happen in light duty vehicles with hydraulic brakes, as well. Brakes create friction, friction creates heat. Too much of it, and they overheat.
Too complex to answer here. Have a look at www.parktool.com, www.sheldonbrown.com or www.biketutor.com and read more.
Answerif discs/rotors, over compensating on rear brakes ( basically means too much braking power is going to the back ) Baised too much to the rear.if drums, warped drums, sticking shoes.oil on brakes would do that
If it's running too hot, the compressor may be spending too much time in the loading cycle.
They can, but their personalities conflict too much.