Was the Hydraulic Brake Diagnostic System Check performed?

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Go to Step 2

Go to Hydraulic Brake Diagnostic System Check

Verify the customer is not riding the brake pedal.

Is the operator riding the brake pedal?

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Go to Step 3

Go to Step 4

Advise the customer of the proper braking procedures.

Has the customer been advised of the proper braking procedures?

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Go to Step 19

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Inspect the vehicle for overloading. Refer to Loading Your Vehicle in the Vehicle Owner's Manual.

Is there excessive weight in the vehicle?

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Go to Step 5

Go to Step 6

Remove the extra weight from the vehicle.

Does the original condition still exist?

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Go to Step 6

Go to Step 19

Inspect the brake pedal assembly for the following conditions:

Are the components misaligned or binding?

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Go to Step 7

Go to Step 8

Repair or replace the cause of misalignment.

Is the repair complete?

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Go to Step 19

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

Refer to Brake Pad Inspection in Disc Brakes or Brake Shoe Inspection in Drum Brakes.

Do any of the above conditions apply?

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Go to Step 9

Go to Step 10

Replace the brake linings. Refer to the appropriate procedure:

Is the repair complete?

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Go to Step 19

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Inspect the brake rotors for the following conditions:

Refer to the appropriate procedure:

Do any of the above conditions apply?

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Go to Step 11

Go to Step 12

1. Refinish the brake rotor. Refer to Brake Rotor Refinishing in Disc Brakes.
2. Inspect the thickness of the rotor. Refer to Component Specifications in Disc Brakes.
3. 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 in Disc Brakes or Rear Brake Rotor Replacement in Disc Brakes.

Is the repair complete?

Go to Step 19

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Inspect the vacuum brake booster and its attaching components for the following conditions:

Do any of the above conditions apply?

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Go to Vacuum Booster Diagnosis - Hard Pedal

Go to Step 13

Inspect the vehicle for a leaking master cylinder (internal). Refer to Master Cylinder Diagnosis .

Is the master cylinder leaking?

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Go to Step 14

Go to Step 15

Overhaul or replace the master cylinder. Refer to Master Cylinder Replacement or Master Cylinder Overhaul .

Is the repair complete?

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Go to Step 19

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Inspect the brake pipes, hoses, or connections for leaks. Refer to Brake Fluid Leak .

Are any of the above components leaking?

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Go to Step 16

Go to Step 17

Repair the cause of the leak.

Is the repair complete?

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Go to Step 19

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Inspect the brake pipes and hoses for the following conditions:

Refer to Hydraulic Brake System Flushing .

Do any of the above conditions apply?

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Go to Step 18

Go to Step 19

1. Determine the area of the restriction. This will involve the disassembly of the individual brake lines and checking for low or no fluid output.
2. Flush the individual brake line or hose. Refer to Hydraulic Brake System Flushing .
3. If the restriction cannot be removed, replace the brake hose or pipe as necessary. Refer to the appropriate procedure:

•	Brake Pipe Replacement

•	Front Brake Hose Replacement

•	Rear Brake Hose Replacement

4. Flush the hydraulic brake system. Refer to Hydraulic Brake System Flushing .

Is the repair complete?

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Go to Step 19

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Verify the proper brake system operation.

Does the brake system operate properly?

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System OK

Go to Hydraulic Brake Diagnostic System Check