[auto]

88 taurus, just changed the two rear wheel cylinders, re adjusted the shoes, and bled all 4 wheels. what could it be? how would i know if its the master cylinder?

 

[prismatic]

Air in the brake lines probably.

 

[wjc]

Bleed them again. And again. And again. There's a bubble in there somehwere...

 

[901-Memphis]

Maybe the person pumping your brakes isn't doing it right?

Try the power bleeder if you can afford one they are a huge time saver

ford late model pressure brake bleeder

double check the application adapter if you are interested, i am not sure if that ones compatible with your model

 

[silver90]

It could be the rear shoes aren't adjusted tight enough. It can be real tricky to get them adjusted right.

 

[auto]

cool, thanks for the responses everyone, a friend lent me his craftsman bleeder, it is a gun that goes to a bottle then connects to the caliper, how much vaccum should i give it?? i think it goes up to 32 psi.