Express 3/4 Ton Van V8-4.8L VIN V (2003)
Hydraulic Brake Booster: Service and Repair
Hydraulic Brake Booster Replacement
Hydraulic Brake Booster Replacement
Caution:
Refer to Brake Fluid Irritant Caution in Service Precautions.
See: Service Precautions/Technician Safety Information/Brake Fluid Irritant Caution
Notice:
Refer to Brake Fluid Effects on parts and Electrical Components Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Brake Fluid Effects on Paint and Electrical Components Notice
Notice:
Hydraulic brake systems use two distinct and incompatible fluids. Power steering fluid is used in the hydraulic brake booster system. Brake
fluid is used in the master cylinder and brake pipes. Use extreme care when selecting brake system fluids or seal damage can result.
Checking and Adding Fluid
For information on checking and adding fluid to the hydraulic booster system, refer to Checking and Adding Power Steering Fluid.
Bleeding the Hydraulic Booster System
Refer to Bleeding the Power Steering System.
Flushing the Hydraulic Booster System
Refer to Flushing the Power Steering System.
Removal Procedure
1. Apply the park brake and block the wheels
2. Remove the master cylinder from the booster. Do not remove the pipes from the master cylinder.
3. Disconnect the inlet hose, the steering gear. and the return hoses from the booster assembly
4. Set the master cylinder aside in the engine compartment.
5. Remove the stop lamp switch.
6. Remove the 4 booster to bulkhead nut.
7. Remove the booster assembly
8. Remove the gasket.
Installation Procedure
