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Home >> Subaru >> 2008 >> Forester XT, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System - Brakes - Mechanical >> Brake Booster >> Inspection >> Operation Check (Without Gauges) >> Loaded Air Tightness Check

Loaded Air Tightness Check

Depress the brake pedal while the engine is running, and turn the engine OFF with the pedal depressed. Keep the pedal depressed for 30 seconds. If the pedal height does not change, the function of brake booster is normal. If the pedal height increases, it is faulty.

NOTE: If faulty, check correctly with gauge.