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Hydraulic Brake System Bleeding (Manual)

WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View of Bleeding Process
    GM1242041Courtesy of GENERAL MOTORS CORP.
    NOTE: Pressure bleeding equipment must be of the diaphragm type. It must have a rubber diaphragm between the air supply and the brake fluid to prevent air, moisture, oil and other contaminants from entering the hydraulic system.
  1. Remove the booster reserve by applying the brakes several times with the engine OFF until all the reserve is depleted.
    2. Fig 2: View of Master Cylinder Reservoir
    GM1242040Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the master cylinder is known or suspected to have air in the bore, then it must be bled before any wheel cylinder or caliper is bled.
  2. Fill the master cylinder reservoir with brake fluid. Keep the master cylinder at least 1/2 full of fluid during the bleeding operation.
    3. Fig 3: View of Front Brakes and Master Cylinder
    GM1242039Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the front brake lines at the master cylinder.
  4. Allow the brake fluid to fill the master cylinder until it begins to flow from the front pipe connector port.
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Connect the front brake lines to the master cylinder.

    Tighten:  Tighten the brake lines to 16 N.m (12 lb ft).

    6. Fig 4: View of Bleeding Process
    GM1242041Courtesy of GENERAL MOTORS CORP.
  6. Slowly push and hold the brake pedal one time.
    7. Fig 5: View of Front Brakes and Master Cylinder
    GM1242039Courtesy of GENERAL MOTORS CORP.
  7. Loosen the front brake line at the master cylinder to purge all air from the cylinder.
  8. Tighten the brake line as in Step 5, and then release the brake pedal slowly. Wait 15 seconds before proceeding to the next step.
  9. Repeat the sequence, including the 15 second wait, until all the air is removed from the master cylinder bore.
    10. NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Cautions and Notices.
  10. After all the air has been removed at the forward connections, bleed the master cylinder at the rear air inlet connections in the same manner as with the front connections.
    11. Fig 6: Attaching Transparent Tube Over Valve In Transparent Container
    GM1242042Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: For vehicles equipped with a non-antilock braking system (non-ABS) the bleeding sequence is as follows: right rear, left front, left rear, and right front. For ABS equipped vehicles, refer to Hydraulic Brake System Bleeding (Manual)  or Hydraulic Brake System Bleeding (Pressure)  in Hydraulic Brakes or the correct sequence and bleeding procedure.
  11. Attach a transparent tube over the valve. Allow the tube to hang submerged in brake fluid in a transparent container.
    12. Fig 7: View of Bleeder Cap and Screw
    GM1242045Courtesy of GENERAL MOTORS CORP.
  12. Slowly push and hold the brake pedal one time.
  13. Remove the bleeder cap and loosen the bleeder screw to purge the air from the cylinder.
  14. Tighten the bleeder screw.

    Tighten:  Tighten the bleeder screw to 9 N.m (80 lb in).

  15. Slowly release the brake pedal. Wait 15 seconds before proceeding with the next step.
    16. IMPORTANT: Rapid pumping of the brake pedal pushes the master cylinder secondary piston down the bore in a manner that makes it difficult to bleed the system.
  16. Repeat the sequence, including the 15 second wait, until all the air is removed. It may be necessary to repeat the sequence 10 or more times to remove all the air.
  17. Locate the front bleeder caps.
    18. Fig 8: Bleeding Front Brakes and Checking Brake Pedal For Sponginess
    GM1242043Courtesy of GENERAL MOTORS CORP.
  18. Proceed to bleed the front brakes following the appropriate sequence, beginning with Step 12.
  19. Check the brake pedal for sponginess. Repeat the entire bleeding procedure to correct this condition.
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