GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Steering 🢒 Power Steering 🢒 Power Brake Booster Inlet Hose Replacement

Removal Procedure
  1. Remove the engine shield. Refer to Engine Shield Replacement.
  2. Place drain pans under the vehicle as needed.
  3. Remove as much power steering fluid from the power steering fluid reservoir as possible.

    4. Caution: Refer to Power Steering Hose Disconnected Caution in the Preface section.


    Object Number: 650858 Size: SH
  4. Disconnect the power brake booster inlet hose from the power steering pump (3).
  5. Disconnect the power brake booster inlet hose (1) from the power brake booster (2).
  6. Remove the power brake booster inlet hose (1) from the vehicle.

Installation Procedure

    Object Number: 650858 Size: SH

    Caution: The inlet and outlet hoses must not be twisted during installation. Do not bend or distort the inlet or outlet hoses to make installation easier. Failure to follow these procedures could result in component damage.

  1. Install the power brake booster inlet hose (1) to the vehicle.

    2. Caution: Refer to Fastener Caution in the Preface section.

    Note: Start both power brake booster inlet hose fittings by hand before finalizing torques.

  2. Connect the power brake booster inlet hose (1) to the power brake booster (2).

    3. Tighten
    Tighten the fitting to 32 N·m (24 lb ft).

  3. Connect the power brake booster inlet hose (1) to the power steering pump (3).

    4. Tighten
    Tighten the fitting to 32 N·m (24 lb ft).

  4. Clean any excess fluid from the vehicle and remove the drain pans.
  5. Install the engine shield. Refer to Engine Shield Replacement.
  6. Fill and bleed the power steering system. Refer to Power Steering System Bleeding.