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Home >> Isuzu >> 1985 >> Pickup LS, 1.9 A, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Component Testing >> Air Switching Valve >> Impulse

Air Switching Valve: Impulse

Apply a vacuum of 3.9 in. Hg to diaphragm of air switching valve. Check that air flows freely from air pump side of valve to air check side of valve.

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