GM Service Manual Online
For 1990-2009 cars only

Front Brake Caliper Replacement J60, J61


Object Number: 2018584  Size: MF

Callout

Component Name

Caution: Refer to Brake Dust Warning in the Preface section.

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

Preliminary 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.

1

Brake Hose-To-Caliper Bolt

Caution: Refer to Fastener Caution in the Preface section.

Caution: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.

Procedure

Remove the bracket bolts from the steering gear knuckle.

Tighten
40 N·m (30 lb ft)

2

Brake Hose Fitting Gasket (Qty:  2)

Procedure

Discard the old gaskets and replace with NEW gaskets during installation.

3

Front Brake Hose

Tip
Plug the brake hose fitting to prevent brake fluid loss and contamination.

4

Brake Caliper Guide Pin Bolt (Qty:  2)

Procedure

  1. Inspect the brake caliper guide pins for freedom of movement, and inspect the condition of the guide pin boots. Move the guide pins inboard and outboard within the bracket bores, without disengaging the slides from the boots, and observe for the following:
  2. • Restricted caliper guide pin movement
    • Looseness in the brake caliper mounting bracket
    • Seized or binding caliper guide pins
    • Split or torn boots
  3. Replace the brake caliper guide pins and/or boots, if any of the conditions listed are found.

Tighten
27 N·m (20 lb ft)

5

Brake Caliper

Warning: At times during this brake bleed procedure brake fluid will be under higher pressures than during typical brake bleed procedures. Ensure the bleeder hose attached to the bleeder valve is securely maintained in position whenever the bleeder valve is opened. Failure to maintain the bleeder hose securely to the valve when opened, may allow the hose to blow off and brake fluid to spray out of the bleeder valve, possibly resulting in personal injury.

Warning: Remove all the air from the hydraulic brake system anytime the hydraulic brake system is opened for repair. The entire bleeding procedure must be followed. Failure to remove all the air in the hydraulic brake system will result in reduced braking performance and possible personal injury.

Procedure

Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.

Front Brake Caliper Replacement J62


Object Number: 2018578  Size: MF

Callout

Component Name

Caution: Refer to Brake Dust Warning in the Preface section.

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

Preliminary Procedures

  1. Inspect the fluid level in the brake master cylinder reservoir.
  2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

1

Brake Hose-To-Caliper Bolt

Caution: Refer to Fastener Caution in the Preface section.

Caution: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.

Procedure

  1. Remove the brake hose-to-caliper bolt from the brake caliper.
  2. Remove the brake hose from the brake caliper.
  3. Remove and discard the 2 copper brake hose gaskets. These gaskets may be stuck to the brake caliper and/or the brake hose end.
  4. Cap or plug the opening in the brake caliper and the brake hose to prevent fluid loss and contamination.

Tighten
40 N·m (30 lbf ft)

2

Guide Pin Bolt (Qty:  2)

Procedure

  1. Remove the brake caliper guide pin bolts.
  2. Remove the brake caliper from the caliper bracket.
  3. Inspect the brake caliper guide pins for freedom of movement, and inspect the condition of the guide pin boots. Move the guide pins inboard and outboard within the bracket bores, without disengaging the slides from the boots, and observe for the following:
  4. • Restricted caliper guide pin movement
    • Looseness in the brake caliper mounting bracket
    • Seized or binding caliper guide pins
    • Split or torn boots
  5. Replace the brake caliper guide pins and/or boots, if any of the conditions listed are found.

Tighten
32 N·m (24 lbf ft)

3

Front Brake Hose

Procedure

Tip
Plug the brake hose fitting to prevent brake fluid loss and contamination.

5

Brake Caliper

Warning: At times during this brake bleed procedure brake fluid will be under higher pressures than during typical brake bleed procedures. Ensure the bleeder hose attached to the bleeder valve is securely maintained in position whenever the bleeder valve is opened. Failure to maintain the bleeder hose securely to the valve when opened, may allow the hose to blow off and brake fluid to spray out of the bleeder valve, possibly resulting in personal injury.

Warning: Remove all the air from the hydraulic brake system anytime the hydraulic brake system is opened for repair. The entire bleeding procedure must be followed. Failure to remove all the air in the hydraulic brake system will result in reduced braking performance and possible personal injury.

Procedure

Bleed the hydraulic brake system.