Operation CHARM: Car repair manuals for everyone.

Master Cylinder Bleeding

NOTE: It is not necessary to bleed the entire hydraulic system after replacing the master cylinder. Providing that the master cylinder has been filled and bled prior to installation.






1. Clamp master cylinder in a vise. Attach Bleeding Tubes, Special Tool C-4546 to the master cylinder. Position tubes so outlets of Bleeding Tubes will be below the surface of the brake fluid when reservoir is filled to the proper level.
2. Fill reservoir with brake fluid conforming to DOT 3 specifications such as Mopar(R) or Equivalent.
3. Using a wooden dowe, Depress master cylinder slowly, and then allow pistons to return to released position. Repeat several times until all air bubbles are expelled.
4. Remove bleeding tubes from cylinder, plug outlets and install caps.
5. Remove master cylinder from vise and install on power brake vacuum booster.