Air Tightness Inspection Under Loaded Condition

With engine running, depress brake pedal. Then stop engine while holding brake pedal depressed.

Fig 1: Depressing Brake Pedal - Engine Running
Courtesy of SUZUKI OF AMERICA CORP.
Hold brake pedal depressed for 30 seconds. If pedal height does not change, condition is good. But it is not if pedal rises.

Fig 2: Depressing Brake Pedal - Hold Brake Pedal
Courtesy of SUZUKI OF AMERICA CORP.