Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Master Cylinder Replacement

Chevrolet Sonic Repair Manual / Chassis / Brakes / General / Master Cylinder Replacement

Removal Procedure

Warning:

Refer to Brake Fluid Irritant Warning.

Caution:

Refer to Brake Fluid Effects on Paint and Electrical Components Caution.

  1. Place the ignition switch in the OFF position.
  2. Remove the battery. Refer to Battery Replacement.
  3. Disconnect the brake fluid level indicator switch electrical connector.
  4. Using a suitable suction device, remove and properly discard the brake fluid from the brake master cylinder reservoir.
  5. On manual transmission equipped vehicles, disconnect the clutch master cylinder reservoir hose. Refer to Clutch Master Cylinder Reservoir Hose Replacement


  6. Disconnect the master cylinder secondary brake pipe fitting (1).
  7. Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.

  8. Disconnect the master cylinder primary brake pipe fitting (1).
  9. Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.

  10. Remove the master cylinder nuts (1).
  11. Remove the brake master cylinder.

  12. Remove the master cylinder seal (1).
  13. Inspect the master cylinder seal for damage or deterioration and replace, if necessary.
  14. Remove the brake fluid level indicator switch, if necessary. Refer to Brake Fluid Level Indicator Switch Replacement.
  15. Remove the master cylinder reservoir, if necessary. Refer to Master Cylinder Reservoir Replacement.
Installation Procedure
  1. Install the master cylinder reservoir, if removed. Refer to Master Cylinder Reservoir Replacement.
  2. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding.
  3. Install the brake fluid level indicator switch, if removed. Refer to Brake Fluid Level Indicator Switch Replacement.


  4. Install the master cylinder seal (1).
  5. Install the master cylinder to the power vacuum brake booster.

  6. Caution:

    Refer to Fastener Caution.

  7. Install the master cylinder nuts (1) and tighten to  50 Y (37 lb ft)

    .



  8. Connect the master cylinder primary brake pipe fitting (1) and tighten to  18 Y (13 lb ft)

    .



  9. Connect the master cylinder secondary brake pipe fitting (1) and tighten to  18 Y (13 lb ft)

    .

  10. On manual transmission equipped vehicles, connect the clutch master cylinder reservoir hose. Refer to Clutch Master Cylinder Reservoir Hose Replacement
  11. Connect the brake fluid level indicator switch electrical connector.
  12. Install the battery. Refer to Battery Replacement.
  13. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.
Master Cylinder Bench Bleeding
Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Secure the mounting flange of the bra ...

Special Tools
Illustration Tool Number/ Description CH 28662 J 28662 Brake Pedal Effort Gauge ...

Other materials:

Driver or Passenger Seat Back Cover and Pad Replacement
Driver or Passenger Seat Back Cover and Pad Replacement Callout Component Name Warning: Refer to SIR Warning. Warning: Do not repair or replace the seat stitching or seams in the seat back trim cover with an ...

Brake Dust Warning
Warning: Avoid taking the following actions when you service wheel brake parts: Do not grind brake linings. Do not sand brake linings. Do not clean wheel brake parts with a dry brush or with compressed air. Some models or aftermarket brake parts may contain asbestos fiber ...

Manual Transmission Shift Lever and Selector Lever Cable Adjustment
Remove the floor console. Refer to Front Floor Console Replacement. Lift upward and disengage (do not remove) both cable lock adjusters (1) to release the internal cable assembly, one for each side. Block the shift control housing, push the selector lever ( ...

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