How do you change master cylinder on 2003 Oldsmobile alero?

Answer 1

unplug electrical connector for the fluid level warning switch. remove as much fluid as possible from master cylinder, with a syringe or similar to suck out the fluid. take off the brake lines to the cylinder. pull lines away from cylinder, and cap the ends so you do not loose fluid from the lines. remove the nuts attaching master cylinder to firewall. pull the cylinder off of the studs to remove it. bench bleed the new cylinder before installing it. (that means to remove all air trapped in cylinder). fill up new cylinder with new fluid, and push on plunger of cylinder to release the air. do this until no more air bubbles are presant in cylinder. if no fluid is lost from the lines and all the air is out of the cylinder. there is no need to bleed all the brakes just bleed by remove lines at cylinder if needed. GOOD_DAY!