Impala V6-3.8L SC VIN 1 (2005)
1. Disconnect the electrical connector from the brake fluid level sensor.
2. Disconnect the brake pipes from the master cylinder.
3. Important: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent brake fluid loss and contamination.
Plug the open brake pipe ends.
4. Remove master cylinder mounting nuts.
5. Remove the master cylinder from the vehicle.
6. Drain the master cylinder reservoir of all brake fluid.
Installation Procedure
1. Bench bleed the master cylinder.
2. Install the master cylinder to the vacuum brake booster.
3. Notice: Refer to Fastener Notice in Service Precautions.
Install the master cylinder mounting nuts.
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Tighten the master cylinder mounting nuts to 33 Nm (24 ft. lbs.).
4. Remove the plugs from the brake pipes
5. Connect the brake pipes to the master cylinder.
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Tighten the brake pipe fittings at the master cylinder to 15 Nm (11 ft. lbs.).
6. Connect the electrical connector to the brake fluid level sensor.
7. Bleed the brake system.
Master Cylinder Reservoir Replacement
Master Cylinder Reservoir Replacement
Removal Procedure
Caution: Refer to Brake Fluid Irritant Caution in Service Precautions.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Service Precautions.
1. Remove the master cylinder from the vehicle.
2. Secure the master cylinder in a vise. Do not clamp the master cylinder body, secure only at the flange.
