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Home >> Buick >> 1980 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Computer Controlled Catalytic Converter System C-4 >> Maintenance >> Oxygen Sensor Replacement >> Removal
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Oxygen Sensor Replacement: Removal

Disconnect sensor electrical connector and spray sensor threads with suitable heat riser valve lube. Allow to soak at least 5 minutes, then carefully back out oxygen sensor.