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GMC
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1987
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Caballero Base, 5.0 H, 700R4/MD8
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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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O2 Sensor
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Notes
O2 Sensor: Notes
NOTE:
O2 sensor may be difficult to remove when engine temperature is below 120°F (48°C). Excessive force can damage threads.