Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Front Disc Brake Mounting and Hardware Inspection

Chevrolet Sonic Repair Manual / Chassis / Brakes / Disc Brakes / Front Disc Brake Mounting and Hardware Inspection

    Warning:

    Refer to Brake Dust Warning.


    Inspect the fluid level in the brake master cylinder reservoir.
  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 then 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 then 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.
  6. Grasp the brake caliper housing and try to move the brake caliper housing up/down and forward/reverse in relation to the brake caliper mounting bracket (3). If excessive looseness is observed the brake caliper bracket bushings and/or the brake caliper mounting bolts may need to be replaced.
  7. Compress the front caliper pistons.
    1. Install a large C-clamp over the top of the caliper housing and against the back of the outboard pad (1).
    2. Slowly tighten the C-clamp until the pistons are pushed completely into the caliper bores.
    3. Remove the C-clamp from the caliper.
  8. With the pistons compressed into the caliper bores, grasp the brake caliper housing and slide it back and forth on the brake caliper mounting bolts. Check for smooth operation. If the brake caliper housing slide force is high or the brake caliper housing does not slide smoothly, inspect the brake caliper mounting bolts and/or the brake caliper mounting bracket bushings for wear or damage. If wear or damage conditions are found, replacement of the brake caliper mounting bolts and/or the brake caliper mounting bracket bushings is necessary.
  9. Remove the brake caliper mounting bolts from the brake caliper mounting bracket and support the brake caliper using heavy mechanics wire. Do Not remove the hydraulic brake hose from the caliper. Refer to Front Brake Caliper Replacement.
  10. Remove the disc brake pads (1, 4) from the brake caliper mounting bracket (3).
  11. Inspect the disc brake pad mounting hardware for the following:
  • If any of the conditions listed are found, the disc brake pad mounting hardware requires replacement.
  • Ensure the disc brake pads are held firmly in place on the brake caliper mounting bracket, yet slide easily on the mounting hardware without binding.

  • Inspect the caliper bolts (1) for the following:
  • If any of the conditions listed are found then the brake caliper mounting hardware requires replacement.
  • Install the disc brake pads to the brake caliper mounting bracket.
  • Install the disc brake caliper to the brake caliper mounting bracket. Refer to Front Brake Caliper Replacement.
  • Front Brake Shield Replacement
    Removal Procedure Warning: Refer to Brake Dust Warning. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front tire and wheel assemb ...

    Parking Brake Adjustment (Disc Brake)
    Note: The park brake cable adjusting nut is a nylon lock type. Use ONLY HAND TOOLS whenever tightening or loosening the adjusting nut. Apply and fully release the park brake several times ...

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