2005 Pontiac grand Am

[klberry212]

brakes.? DTRS car i installed new front pads. Done it many times before. Psi bled 4 times, hand bled, and psi bled again. No pedal unless you pump. Makes a whish (Air) sound and gos to floor. Master cylinder? Please advise asap.
Slider

 

[jon]

I had a similar problem once. The brake worked perfect for years then it came time for new pads. So I put new pads on and could not get the brake to bleed or feel right again, I ended up having to replace the master cylinder. It is odd the the master cylinder quits working right at the same time I replaced the brake pads but that happened to me once and to a friend of mine once also.

 

[bruce k]

did you also pressure bleed the abs unit in front of the master cyl.? if not, try that. there should be 2 bleeders in plain sight.

 

[seanomc70]

Brake fluid in resivior?