GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 DTS 🢒 Preface 🢒 Dangers, Warnings, and Cautions 🢒 Rear Brake Hose Replacement

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  3. Clean all dirt and foreign material from the brake hose and the brake pipe fittings.

    4. Object Number: 497900 Size: SH

    Note: Cap the brake pipe fitting to prevent brake fluid loss and contamination.

  4. Remove the brake pipe fitting from the brake hose.

    5. Object Number: 420702 Size: SH
  5. Use a flat-bladed tool in order to remove the brake hose retainer from the brake hose.
  6. Remove the brake hose from the brake hose bracket.

    7. Object Number: 420701 Size: SH
  7. Remove the brake hose bolt from the brake caliper.
  8. Remove the brake hose from the brake caliper.
  9. Remove and discard the two copper brake hose gaskets. These gaskets may be stuck to the brake caliper and/or the brake hose end.
  10. Plug the brake caliper inlet port to prevent brake fluid loss and contamination.

Installation Procedure
  1. Remove the plug from the inlet port of the brake caliper, if necessary.

    2. Object Number: 420701 Size: SH

    Note: Install NEW copper brake hose gaskets.

  2. Assemble the brake hose bolt and the NEW copper brake hose gaskets to the brake hose.

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

  3. Install the brake hose bolt to the brake caliper.

    4. Tighten

        • Tighten the brake hose to caliper bolt to 40 N·m (30 lb ft) (JL9).
        • Tighten the brake hose to caliper bolt to 45 N·m (33 lb ft) (J55).

    Object Number: 420702 Size: SH

    Caution: Make sure the brake hose is not twisted or kinked after installation. Damage to the hose could result.

  4. Install the brake hose to the brake hose bracket.
  5. Install the brake hose retainer to the brake hose.

    6. Object Number: 497900 Size: SH
  6. Remove the cap from the brake pipe fitting end.
  7. Install the brake pipe fitting to the brake hose.

    8. Tighten
    Tighten the brake pipe fitting to 15 N·m (11 lb ft).

    Warning: Do not move the vehicle until a firm brake pedal is obtained. Air in the brake system can cause the loss of brakes with possible personal injury.

  8. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.
  9. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  10. Lower the vehicle.