I own a 95' Silverado (350c.i.) , My problem is that my brake pedal is really soft. The pedal almost hits the floor! I bled all four corners with new fluid and it still does it. Is my master cylinder broke? Please Help-

Thanks- Brandon

 

Most likely,yes...if there are no leaks...and no air,it soiunds like it a m/c..
does the red warning lite come on?

 

the comes on sometimes. are m/c easy to change?

 

Easy to change...but make sure to "bench-bleed" it first...or you'll just pump major air into your system

 

how do you bench bleed, if you dont mind me asking ???? (Im new to the brakes world!) Ill pick a m/c this weekend and give a try. Thanks again fot all the advice.
-Brandon-

 

Put the new master cylinder in a vise with brake fluid in it of course. Keep the little plastic caps that come with the master cylinder in the holes. Get a screw driver or something to push in on the plunger with and keep your fingers over the plastic caps where the brake lines will screw in. Hold on kinda tight cuz they will fly off if u don't. Push in and out on the plunger until you feel that all of the air has come out of the cylinder properly.