Colorado 4WD V8-5.3L (2010)
Master Cylinder Replacement
Removal Procedure
Warning: Refer to Brake Fluid Irritant Warning (See: Service Precautions/Technician Safety Information/Brake Fluid Irritant Warning).
1. Apply and release the brake pedal several times until the pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
2. Using a suitable tool, remove and properly discard the brake fluid from the master cylinder reservoir.
3. Clean the master cylinder assembly with denatured alcohol to remove any accumulated dirt and debris and allow to dry.
4. Disconnect the brake fluid level indicator switch electrical connector.
5. Disconnect the master cylinder secondary brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
6. Disconnect the master cylinder primary brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
