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Home › Pontiac › 1983 › 2000 Base, 2D Hatchback, 2.0 P › Repair and Diagnosis › Engine Performance › System › Air Injection Reactor System › Trouble Shooting › Excessive Noise

Excessive Noise

Loose drive belt.
Seized air pump.
Leaking hose or hoses.
Diverter and/or by-pass valve failure.
Loose pump mounting bolts.
Internal pump damage.