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GMC
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1985
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Safari Van Cargo, 4.3 N, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Fuel Injection System - TBI
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Removal & Installation
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Oxygen Sensor
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Notes
Oxygen Sensor: Notes
NOTE:
Oxygen sensor may be difficult to remove when engine temperature is below 120°F (49°C). Excessive force may damage threads.