mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Vacuum Brake Booster|Service and Repair > < Vacuum Brake Booster|Specifications
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Vacuum Brake Booster: Testing and Inspection

STEP 1

1. Push the brake pedal down.
2. Start the engine.
3. The brake pedal should move downward when engine is started.

STEP 2

1. Run the engine for 1-2 minutes, and shut off.
2. Depress the pedal three times.

NOTE:  Each time the pedal is depressed the stroke becomes shorter.

3. If a problem is found, inspect the check valve, vacuum hose, and examine installation. Repair if necessary.

STEP 3

1. Start the engine and depress the brake pedal.
2. Shut engine off.
3. The brake pedal height should stay the same.
4. If problem is found, inspect the check valve, vacuum hose, and connections.

Vacuum Brake Booster|Service and Repair > < Vacuum Brake Booster|Specifications