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Home >> Isuzu >> 1986 >> Impulse 2.0 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Component Testing >> Air Switching Valve
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Air Switching Valve

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.