AIR14 - Check For Vacuum to Drop

NOTE: This test step will require your attention to time.

^ Engine RUNNING.

^ Check for vacuum to change from high to low.

^ Does vacuum drop to zero within a few minutes after engine was started?

YES -- Go to AIR15. AIR15 - Check AIRD Valve Diaphragm

NO -- Go to AIR27. AIR27 - Check Air Solenoid