GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Corvette 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Braking Action Uneven - Front to Rear

Step

Action

Yes

No

1

Was the Hydraulic Brake Diagnostic System Check performed?

Go to Step 2

Go to Hydraulic Brake Diagnostic System Check

2

Inspect the disc brake rotors for the following:

    • Hot spots
    • Scored rotor surface
    • Grooved rotor surface

Refer to Brake Rotor Lateral Runout Check in Disc Brakes.

Do any of the above conditions exist?

Go to Step 3

Go to Step 4

3

Resurface or replace the brake rotor as necessary. Refer to Brake Rotor Refinishing , Brake Rotor Replacement in Disc Brakes.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

4

Inspect the following brake caliper assembly components for corrosion:

    • Mounting bolts
    • Steering knuckle
    • Brake caliper
    • Brake caliper piston

Are any of the above components corroded or sticking?

Go to Step 5

Go to Step 6

5

Repair or replace the brake calipers. Refer to Brake Caliper Overhaul or Brake Caliper Replacement in Disc Brakes.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

6

Inspect the brake pads for the following:

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

Do any of the above conditions exist?

Go to Step 7

Go to Step 8

7

Replace the brake pads as necessary. Refer to Brake Pads Replacement in Disc Brakes.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

8

Inspect the brake assembly for loose, missing or broken components. Refer to Brake Pad Inspection in Disc Brakes.

Are there missing or loose brake assembly components?

Go to Step 9

Go to Step 10

9

Repair or replace the components as necessary.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

10

Inspect the hydraulic brake system for leaks.

Are there brake fluid leaks?

Go to Step 11

Go to Step 13

11
  1. Tighten the brake hose or pipe fittings to specifications.
  2. Start the engine.
  3. Press the brake pedal several times.
  4. Turn OFF the engine.
  5. Inspect the hydraulic brake system for leaks.

Has the leak returned?

Go to Step 12

Go to Hydraulic Brake Diagnostic System Check

12

Replace the brake hose or pipe as necessary.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

13

Inspect the brake caliper for leaks.

Is the brake caliper piston seal leaking?

Go to Step 14

Go to Step 15

14

Repair or replace the brake caliper. Refer to Brake Caliper Overhaul in Disc Brakes.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

15

Inspect the park brake for improper adjustment.

Is the park brake improperly adjusted?

Go to Step 16

Go to Step 17

16

Adjust or replace the park brake cable. Refer to Park Brake Cable Replacement in Park Brake.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

17

Inspect for an internal leak within the master cylinder. Refer to Master Cylinder Diagnosis .

Is there an internal leak within the master cylinder?

Go to Step 18

Go to Step 19

18

Replace the master cylinder. Refer to Master Cylinder Replacement .

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

19

Inspect for contaminated or improper brake fluid.

Is the brake fluid contaminated or improper?

Go to Step 20

Go to Step 21

20

Replace all of the hydraulic brake system rubber components.

  1. Replace the master cylinder. Refer to Master Cylinder Replacement .
  2. Replace the front brake hoses. Refer to Front Brake Hose Replacement .
  3. Replace the rear brake hoses. Refer to Rear Brake Hose Replacement .
  4. Repair or replace the FRONT brake calipers. Refer to Brake Caliper Overhaul or Brake Caliper Replacement in Disc Brakes.
  5. Repair or replace the REAR brake calipers. Refer to Brake Caliper Overhaul or Brake Caliper Replacement in Disc Brakes.
  6. Flush the hydraulic brake system. Refer to Hydraulic Brake System Flushing .

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

21

Inspect the brake pipes and hoses for a restricted brake fluid passage. Check for the following:

    • Low fluid or no fluid output
    • Spurting of fluid while pressing the brake pedal
    • Particles suspended in the fluid

Refer to Hydraulic Brake System Bleeding .

Is there a restricted brake fluid passage?

Go to Step 22

Go to Step 23

22
  1. Determine the area of the restriction. This will involve the disassembly of individual brake pipes and hoses and checking for low or no fluid output
  2. Flush the individual brake pipe or hose. Refer to Hydraulic Brake System Flushing .
  3. If the restriction cannot be removed, replace the applicable brake hose or the brake pipe.
  4. Flush the hydraulic brake system. Refer to Hydraulic Brake System Flushing .

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

23

Inspect for air in the brake system. Refer to Hydraulic Brake System Bleeding .

Is there air in the brake system?

Go to Step 24

Go to Step 25

24

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

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

25

Verify proper brake system operation.

Does the original condition still exist?

Go to Step 1

--