GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Corvette 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Brakes Drag

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

Is the operator riding the brake pedal?

--

Go to Step 3

3

Inspect the brake pedal assembly for the following:

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

Do any of the above conditions exist?

Go to Step 4

Go to Step 5

4

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

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

5

Inspect the brake pads for the following:

    • Excessive wear
    • Uneven wear

Refer to Brake Pad Inspection in Disc Brakes.

Do any of the above conditions exist?

Go to Step 6

Go to Step 7

6

Replace the brake pads. Refer to Brake Pads Replacement

Go to Hydraulic Brake Diagnostic System Check

--

7

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

Are there any loose or missing attachments?

Go to Step 8

Go to Step 9

8

Repair or replace the components as necessary.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

9

Check for an improperly adjusted park brake.

Is the park brake improperly adjusted?

Go to Step 10

Go to Step 11

10

Adjust the park brake. Refer to Parking Brake Shoe Adjustment in Park Brake.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

11

Inspect the front suspension for loose or missing components.

Are there any loose or missing components?

Go to Step 12

Go to Step 13

12

Repair or replace the components as necessary.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

13

Inspect the disc brake caliper for the following:

    • Sticking caliper pistons
    • Corroded mounting bolts.

Do any of the above conditions exist?

Go to Step 14

Go to Step 15

14

Replace the sticking or corroded components. Refer to Front Brake Caliper Overhaul or Rear Brake Caliper Overhaul in Disc Brakes.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

15

Inspect the brake fluid for contamination.

Is the brake fluid contaminated?

Go to Step 16

Go to Step 17

16

Replace all of the hydraulic brake system rubber components.

  1. Repair or 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 Front Brake Caliper Overhaul or Front Brake Caliper Replacement in Disc Brakes.
  5. Repair or replace the REAR brake calipers. Refer to Rear Brake Caliper Overhaul or Rear 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

--

17

Check the brake pipes and brake hoses for the following:

    • Low fluid or no fluid output
    • Particles suspended in the fluid

Refer to Hydraulic Brake System Flushing .

Do any of the above conditions exist?

Go to Step 18

Go to Step 19

18

Determine the area of restriction. This will involve the disassembly of individual brake pipes and checking for low or no fluid output. Flush the individual brake pipe or hose. Refer to Hydraulic Brake System Flushing .

If the restriction cannot be removed, replace the applicable brake hose or the brake pipe.

Is the repair complete?

Go to Hydraulic Brake Diagnostic System Check

--

19

Verify the brake system operation. Does the original condition still exist?

Go to Step 1

System OK