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Home >> Oldsmobile >> 1998 >> Intrigue V6-3.8L VIN K >> Repair and Diagnosis >> Maintenance >> Brake Bleeding >> Service and Repair >> Hydraulic Brake System Bleeding (Pressure Bleeding)

Hydraulic Brake System Bleeding (Pressure Bleeding)

- Tools Required
- J29532 Diaphragm Type Brake Bleeder
- J 35589 Brake Bleeder Adapter
- 1/8 Inch 90 Degree Pipe Fitting Elbow

NOTICE: Prior to bleeding the brakes, the front and rear displacement cylinder pistons must be returned to the topmost position. The preferred method uses a Scan Tool to perform the rehoming procedure. If a Scan Tool is not available, the second procedure may be used, but it is extremely important that the procedure be followed exactly as outlined.

IMPORTANT: Bleed the ENTIRE brake system if air has entered the hydraulic brake system through either of the following conditions:





- The master cylinder brake fluid level is at the bottom of the master cylinder reservoir.
- Any part of the hydraulic brake system is opened between the master cylinder and any of the brake caliper flexible hoses.

NOTICE:
- 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, and other contaminants from entering the hydraulic system.
- Avoid spilling brake fluid on any of the vehicle's painted surfaces, wiring, cables, or electric connectors. Brake fluid will damage the paint and the electrical connections. If any fluid is spilled on the vehicle, flush the area to lessen the damage.

1. Inspect and fill the master cylinder reservoir to the proper level as necessary. Refer to Master Cylinder Reservoir Filling.
2. Assemble the following components to the J 35589
2.1. 1/4 inch to 1/8 inch adapter
2.2. Assemble the 1/8 Inch 90 Degree Pipe Fitting Elbow to the
2.3. 1/8 inch quick connect fitting

3. Install the J 35589 to the master cylinder reservoir.
4. Connect the J 29532 to the J 35589.
5. Adjust the J 29532 to 35-70 kPa (5-10 psi).
6. Wait approximately 30 seconds, then inspect the entire hydraulic brake system in order to ensure that there are no existing brake fluid leaks. Repair any brake fluid leaks.
7. Adjust the J 29532 to 205-240 kPa (30-35 psi).





8. Install a clear plastic bleeder hose to the ABS modulator REAR bleeder valve (1).
9. Submerge the opposite end of the clear plastic bleeder hose in a clean container partially filled with clean brake fluid.
10. Slowly open the ABS modulator bleeder valve in order to allow the brake fluid to flow.
11. Close the ABS modulator bleeder valve when air bubbles are no longer detected in the fluid.
12. Remove the clear plastic bleeder hose from the ABS modulator bleeder valve.
- Tighten the previously bled ABS modulator bleeder valve to 9 Nm (80 inch lbs.).

13. Install the clear plastic bleeder hose to the ABS modulator RIGHT FRONT bleeder valve (2).
14. Repeat Steps 9 through 11.

IMPORTANT: Use a shop cloth in order to catch escaping brake fluid.





15. Slowly open the FRONT ABS modulator brake pipe fitting (1) in order to allow the brake fluid to flow.
16. Close the ABS modulator brake pipe fitting when air bubbles are no longer detected in the brake fluid.
- Tighten the ABS modulator brake pipe fitting to 24 Nm (18 ft. lbs.).

17. Repeat Steps 14 and 15 for the remaining ABS modulator brake pipe fittings in the order shown.
18. Raise and suitably support the vehicle.





19. Install the clear plastic bleeder hose to the RIGHT REAR bleeder valve.
20. Submerge the opposite end of the clear plastic bleeder hose in a clean container partially filled with clean brake fluid.
21. Slowly open the bleeder valve in order to allow the brake fluid to flow.
22. Close the bleeder valve when air bubbles are no longer detected in the brake fluid.
- Tighten the wheel cylinder bleeder valve to 11 Nm (97 inch lbs.).

23. Remove the clear plastic bleeder hose from the bleeder valve.





24. Install the clear plastic bleeder hose to the LEFT FRONT brake caliper bleeder valve.
25. Submerge the opposite end of the clear plastic bleeder hose in a clean container partially filled with clean brake fluid.
26. Slowly open the bleeder valve in order to allow the brake fluid to flow.
27. Close the bleeder valve when air bubbles are no longer detected in the brake fluid.
- Tighten the brake caliper bleeder valve to 13 Nm (115 inch. lbs.).

28. Remove the clear plastic bleeder hose from the bleeder valve.





29. Install the clear plastic bleeder hose to the LEFT REAR bleeder valve.
30. Submerge the opposite end of the clear plastic bleeder hose in a clean container partially filled with clean brake fluid.
31. Slowly open the bleeder valve in order to allow the brake fluid to flow.
32. Close the bleeder valve when air bubbles are no longer detected in the brake fluid.
- Tighten the wheel cylinder bleeder valve to 11 Nm (97 inch lbs.).

33. Remove the clear plastic bleeder hose from the bleeder valve.





34. Install the clear plastic bleeder hose to the RIGHT FRONT brake caliper bleeder valve.
35. Submerge the opposite end of the clear plastic bleeder hose in a clean container partially filled with clean brake fluid.
36. Slowly open the bleeder valve in order to allow the brake fluid to flow.
37. Close the bleeder valve when air bubbles are no longer detected in the brake fluid.
- Tighten the brake caliper bleeder valve to 13 Nm (115 inch lbs.).

38. Remove the clear plastic bleeder hose from the bleeder valve.
39. Lower the vehicle.
40. Remove the J 35589 from the master cylinder reservoir.





41. Inspect and fill the master cylinder reservoir to the proper level as necessary. Refer to Master Cylinder Reservoir Filling in Master Cylinder, Brakes.
42. Install the master cylinder reservoir cap.
43. Start the engine and allow the engine to run for at least 10 seconds.
44. Turn the ignition OFF.
45. Inspect the brake pedal feel and the brake pedal travel. Refer to Brake Pedal Travel in Brakes.
46. Start the engine and inspect the brake pedal feel.
47. Use the scan tool in order to perform the following functions:
47.1. Release, then apply each ABS motor 3 times.
47.2. Cycle each ABS solenoid 10 times.
47.3. Apply the ABS front and rear motors in order to ensure that the ABS modulator pistons are in the full up position. DO NOT DRIVE THE VEHICLE.
48. Repeat the Brake System Pressure Bleeding procedure if a firm brake pedal is not obtained. Go to Step 1.

CAUTION: Do not move the vehicle until a firm brake pedal is obtained. Failure to obtain a firm pedal before moving vehicle may result in personal injury.

49. Road test the vehicle. Make several normal (non-ABS) stops from a moderate speed in order to ensure proper brake system function. Allow adequate brake system cooling time between stops.

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