M35x AWD V6-3.5L (VQ35DE) (2007)
Vacuum Brake Booster: Testing and Inspection
Air Tight Check
AIR TIGHT CHECK
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Run engine at idle for approximately 1 minute, and stop it after applying vacuum to booster. Depress brake pedal normally to change vacuum to
atmospheric pressure. Make sure that distance at intervals of 5 seconds between brake pedal and floor panel gradually increases.
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Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke should not change after holding pedal down
for 30 seconds.