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Brake Master Cylinder: Removal

CAUTION: Replacement of nuts and bolts: Various thread-locking devices are used on nuts and bolts throughout the vehicle. These devices restrict the number of times a nut or bolt can be used. See THREAD LOCKING DEVICES for additional information.
CAUTION: Remove brake fluid spillage immediately from paint work, with clean water.
  1. Position vehicle on a four-post lift.
  2. Open engine compartment and fit paint work protection covers to fenders.
  3. Disconnect battery ground cable (IMPORTANT, see BATTERY GROUND CABLE for further information).
  4. Remove engine compartment rear cover. Refer to ENGINE COVER .
  5. Remove pedal housing, brake booster and master cylinder assembly. Refer to BRAKE PEDAL AND BRACKET, BRAKE BOOSTER AND BRAKE MASTER CYLINDER  .
  6. Place assembly on a work bench.
  7. Remove nuts securing master cylinder to brake booster.
    Fig 1: Removing Master Cylinder To Brake Booster Nuts
    G03131088
  8. Remove master cylinder from brake booster.
    • Remove master cylinder.
    • Remove and discard seal.
    Fig 2: Removing Master Cylinder From Brake Booster
    G03131089
  9. Remove filler cap and empty residual brake fluid into a container. Fit cap.
  10. Remove fluid reservoir from master cylinder.
    • Remove locating pin.
    • Pull reservoir from master cylinder.
    Fig 3: Removing Fluid Reservoir From Master Cylinder
    G03131090
  11. Install plugs into fluid reservoir ports.
    Fig 4: Installing Plugs Into Fluid Reservoir Ports
    G03131091
  12. Remove and discard seals from master cylinder.
    Fig 5: Removing Seals From Master Cylinder
    G03131092
  13. Install plugs into master cylinder ports.
    Fig 6: Installing Plugs Into Master Cylinder Ports
    G03131093
  14. Clean components and mating surfaces.