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Home >> Saturn >> 2003 >> Ion 1 Standard >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Removal & Installation >> Vacuum Booster (Except Vehicles Equipped With CVT) >> Installation

Vacuum Booster (Except Vehicles Equipped With CVT): Installation

NOTE: Internal components of this booster are not serviceable. The housing must not be unstaked and separated. Separating the housing will cause permanent deformation, preventing booster from holding proper volume.
  1. Install mounting gasket to vacuum brake booster.
  2. Install brake booster to firewall.
  3. Loosely install brake booster mounting nuts.
  4. Apply a thin coating of lithium grease to the push rod pin on brake pedal.
  5. Connect brake booster push rod to brake pedal.
  6. Install washer and retaining clip to brake pedal.
  7. Tighten vacuum brake booster mounting nuts to specification. See TORQUE SPECIFICATIONS .
  8. Install accelerator pedal into position and install pedal mounting nuts.
  9. NOTE: A small amount of denatured alcohol can be used as an assembly aid when installing vacuum check valve. DO NOT use soap.
  10. Connect vacuum check valve with hose to brake booster.
  11. Ensure that master cylinder-to-vacuum brake booster seal is properly seated into the recessed groove on master cylinder.
  12. Install master cylinder with brake pipes to the vacuum brake booster.
  13. Install brake master cylinder mounting nuts to specification. See TORQUE SPECIFICATIONS .
  14. Secure brake master cylinder pipes to the 6-position pipe clip along the frame rail.
  15. Install brake master cylinder auxiliary reservoir.
  16. Install underhood electrical center bracket to vehicle and install electrical center into position on the bracket.
  17. Connect electrical connector to brake fluid level sensor, then press forward on the CPA tab of the connector to secure.
  18. Install cover to underhood electrical center.
  19. Connect negative battery cable.