GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Hydraulic Brake System Diagnostic Check performed?

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Go to Step 2

Go to Hydraulic Brake Diagnostic System Check

2

Inspect the disc brake pads and brake shoe linings for the following conditions:

    • Excessive wear
    • Uneven wear
    • Abuse
    • Glazing
    • Contaminated lining material
    • Incorrect lining material

Refer to Brake Pad Inspection in Disc Brakes.

Do any of the above conditions apply?

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Go to Step 3

Go to Step 4

3

Replace the brake linings. Refer to the appropriate procedure:

    •  Front Disc Brake Pads Replacement in Disc Brakes
    •  Rear Disc Brake Pads Replacement in Disc Brakes

Is the repair complete?

--

Go to Step 8

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4

Inspect the brake rotors for the following conditions:

    • Hot spots
    • Scored rotor surface
    • Grooved rotor surface
    • Excessive surface variations

Refer to the following procedures:

    •  Brake Rotor Thickness Variation Check in Disc Brakes
    •  Brake Rotor Lateral Runout Check in Disc Brakes
    •  Brake Rotor Tolerance in Disc Brakes

Do any of the above conditions apply?

--

Go to Step 5

Go to Step 6

5

    Important: If refinishing the brake rotor results in a thickness that is less than the thinnest (Refinishing) thickness, replace the rotor. Refer to Front Brake Rotor Replacement or Rear Brake Rotor Replacement in Disc Brakes.

  1. Inspect the brake rotor thickness. Refer to Component Specifications in Disc Brakes.
  2. Refinish the rotor. Refer to Brake Rotor Refinishing in Disc Brakes.

Is the repair complete?

--

Go to Step 8

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6

Inspect brake assembly for loose, broken or missing attachments.

Are there any loose, broken or missing attachments?

--

Go to Step 7

Go to Step 8

7

Tighten or replace the loose, broken or missing brake assembly components.

Is the repair complete?

--

Go to Step 8

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8

Verify proper brake system operation.

Does the brake system operate properly?

--

System OK

Go to Hydraulic Brake Diagnostic System Check