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Home >> Oldsmobile >> 1980 >> Custom Cruiser 5.7L Eng VIN R >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Air Injection Reactor System >> Trouble Shooting >> Excessive Noise
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Excessive Noise

Loose drive belt or seized pump. Leaking hose. Improperly positioned hose. Diverter and/or bypass valve failure. Loose pump mounting. Pump damaged.

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