Cutlass V6-191 3.1L VIN M SFI (1998)
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Right front
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Left front
Bleed the wheel brakes in the sequence shown above:
10.1.
Attach the bleeder hose to the bleeder valve.
Submerge the opposite hose end in a clean container partially filled with brake fluid.
10.2.
Slowly open the bleeder valve and allow the fluid to flow.
10.3.
Close the valve when the fluid begins to flow without any air bubbles. Tap lightly with a rubber mallet in order to dislodge any trapped air
bubbles.
11. Lower the vehicle.
12. Remove the J 35589.
13. Inspect the fluid level in the reservoir. Fill the reservoir to the correct level using clean brake fluid, if necessary.
14. Install the fluid reservoir cover and diaphragm assembly.
15. Inspect the pedal travel and feel. Complete the following steps:
15.1. With the ignition switch in the Run position, apply the brake pedal with moderate force and hold the pedal.
15.2. Note the pedal travel and feel. If the pedal feels firm and constant and pedal travel is not excessive, start the engine. With the engine
running, re-check the pedal travel.
15.3. If the pedal travel is still firm and constant and the pedal travel is not excessive, road test the vehicle. Make several normal (non-ABS) stops
from a moderate speed in order to ensure the proper brake system function.
16. If the pedal feels soft or has excessive travel either initially or after engine start, complete the following steps:
16.1. Using the Scan Tool, release then apply the motors 2 to 3 times, and cycle the solenoids 5 to 10 times.
16.2. Apply the front and rear motors in order to ensure that the pistons are in the upper most position.
16.3. Repeat the entire pressure bleeding procedure.
17. Road test the vehicle. Make several normal (non-ABS) stops from a moderate speed in order to ensure the proper brake system function.
MANUAL BLEEDING
IMPORTANT: Use a suitable container and/or shop rags in order to catch the fluid and prevent it from contacting any painted surfaces.
Clean the fluid reservoir cover and the surrounding areas.
Inspect the fluid level in the reservoir and fill to the correct level if necessary.
1. Clean the fluid reservoir cover and the surrounding area.
2. Inspect the fluid level in the reservoir. Fill the reservoir to the correct level, if necessary.
3. Install the fluid reservoir cover.
4. Prime the hydraulic modulator/master cylinder assembly:
4.1. Attach the bleeder hose to the rearward bleeder valve.
Submerge the opposite hose end in a clean container partially filled with brake fluid.
4.2. Slowly open the rearward bleeder valve 1/2 to 3/4 turns.
4.3. Depress the brake pedal and hold the pedal until the fluid begins to flow.
4.4. Close the valve and release the brake pedal. Repeat the previous two steps until no air bubbles are present.
4.5. Repeat the previous three steps until the fluid begins to flow.
5. Relocate the bleeder hose to the forward hydraulic modulator bleeder valve.
5.1. Submerge the opposite hose end in a clean container partially filled with brake fluid.
5.2. Slowly open the rearward bleeder valve 1/2 to 3/4 turns.
5.3. Depress the brake pedal and hold the pedal until the fluid begins to flow.
5.4. Close the valve and release the brake pedal. Repeat the previous two steps until no air bubbles are present.
5.5. Repeat the previous three steps until the fluid begins to flow.
IMPORTANT: Once the fluid flows from both of the modulator bleeder valves, the hydraulic modulator/master cylinder assembly is sufficiently
full of fluid. However, the master cylinder assembly may not be completely purged of air. At this point move to the wheel brakes and bleed them.
Bleeding the wheel brakes ensures that the lowest points in the system are completely free of air. Then, the hydraulic modulator/master cylinder
assembly may be purged of any remaining air.
6. Remove the fluid reservoir cover.
7. Inspect the fluid level in the reservoir. Fill the reservoir to the correct level, if necessary. Use clean brake fluid.
8. Install the fluid reservoir cover.
9. Raise the vehicle. Support the vehicle.
Bleed the wheel brakes in the sequence shown above:
