GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Corvette 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Brake Pedal Excessive Effort

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 brake pedal assembly for the following:

    • Bent or misaligned components
    • Binding or interference between the pedal and booster input rod

Are the components misaligned or binding?

Go to Step 3

Go to Step 4

3

Repair or replace the cause of misalignment, interference or binding.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

4

Inspect the brake linings for the following:

    • 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 exist?

Go to Step 5

Go to Step 6

5

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

--

6

Inspect the brake rotor for the following:

    • Hot spots
    • Scored rotor surface
    • Grooved rotor surface

Do any of the above conditions exist?

Go to Step 7

Go to Step 8

7

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

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

8

Inspect the vacuum brake booster for leaks.

Is the vacuum brake booster leaking?

Go to Step 9

Go to Step 10

9

Repair or replace the vacuum brake booster. Refer to Power Vacuum Brake Booster Replacement .

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

10

Check the master cylinder outlet ports for restricted passages. Refer to Hydraulic Brake System Bleeding .

Are the outlet ports restricted?

Go to Step 11

Go to Step 12

11

Replace all of the hydraulic brake system rubber components.

  1. Replace the master cylinder. Refer to Master Cylinder Replacement .
  2. Flush the hydraulic brake system. Refer to Hydraulic Brake System Flushing .

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

12

Check the brake pipes and hoses 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 Flushing .

Do any of the above conditions exist?

Go to Step 13

Go to Step 14

13
  1. Determine the area of the restriction. This will involve the disassembly of individual brake pipes 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

--

14
  1. Verify proper brake system operation.
  2. Verify customer complaint.

Does the original condition still exist?

Go to Step 1

System OK