Brake Master Cylinder: Service and Repair

MASTER CYLINDER REPLACEMENT


NOTE: Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.





1. Remove the reservoir cap, and remove the brake fluid.
2. Disconnect the brake fluid level switch connector (A) from the reservoir (B), and disconnect the brake lines (C) from the master cylinder (D). To prevent spills, cover the hose joints with rags or shops towels.
3. Remove the master cylinder mounting nuts (E) and washers.
4. Remove the master cylinder from the brake booster (F). Be careful not to bend or damage the brake lines when removing the master cylinder.
5. Remove the rod seal (G) from the brake booster.
6. Install the master cylinder in the reverse order of removal, and note these items:
^ Replace all rubber parts with new ones whenever removed. Coat the lip of the new rod seal with the recommended seal grease in the master cylinder set.
^ Install the rod seal onto the brake booster with its grooved side toward the master cylinder.
7. Bleed the brake system.
8. Check for leaks at the line joints, and retighten if necessary.