VARIABLE AIR DUCT (VAD) CHECK VALVE (ONE-WAY) INSPECTION [L5]

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1.  Remove the VAD check valve (one-way). (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L8, LF, L5]

2.  Blow through A and verify that air flows from B.

3.  Blow through B and verify that air does not flow from A.

•  If not as specified, replace the VAD check valve (one-way).

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