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Home >> Cadillac >> 1987 >> Cimarron Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Operation >> Air Pump

Air Pump

The air pump is a belt driven, positive displacement vane-type pump. The air pump is permanently lubricated and requires no periodic service. The air injection system injects filtered air into the exhaust manifold and/or catalytic converter.

NOTE: Always cover centrifugal filter fan before cleaning engine to prevent liquid from entering air pump. Do Not oil air pump.
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