Removal Procedure

Place the ignition switch in the OFF position.
Apply and release the brake pedal several times until the brake pedal becomes firm to deplete the power brake booster vacuum reserve.
Without disconnecting the hoses, remove and position aside the radiator surge tank. Radiator Surge Tank Replacement (LCV) , or Radiator Surge Tank Replacement (LGX) , or Radiator Surge Tank Replacement (LSY)
Power Brake Booster Vacuum Sensor Electrical Connector - Disconnect
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Power Brake Booster Vacuum Sensor (1) - Remove
Disconnect the brake fluid level indicator switch electrical connector.
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Brake Master Cylinder Nut (1) - Remove and DISCARD [2x]
Without disconnecting the brake pipes, carefully remove and position aside the master cylinder.
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NOTE:
Do NOT loosen the power brake booster bolts completely.

Power Brake Booster Bolt (1) - Loosen [2x]
Brake Pedal Position Sensor - Remove - Brake Pedal Position Sensor Replacement
With the aid of an assistant, hold the power brake booster away from the dash panel.
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Brake Pedal Retainer (1) - Release

NOTE:

Pull the brake pedal rearward to release.

Brake Pedal (2) - Release
Completely loosen the 2 power brake booster bolts.
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Power Brake Booster (1) - Remove
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Power Brake Booster Seal (1) - Inspect for damage
Replace the power brake booster seal if damaged.
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NOTE:
Insert a long, thin tool through the power brake booster pass-through from the engine compartment to remove the brake pedal retainer.

Brake Pedal Retainer (1) - Remove and DISCARD