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Home >> Pontiac >> 1979 >> Phoenix Base, 2D Hatchback, 3.8L Eng VIN A, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Computer Controlled Catalytic Converter >> Maintenance >> Oxygen Sensor Replacement >> Removal

Oxygen Sensor Replacement: Removal

  1. On all 1979 models and 1980 models with 4-cylinder engine, remove air cleaner and hot air pipe from exhaust shroud. On 1980 models with V6 engine, raise vehicle on hoist.
  2. Disconnect electrical lead from sensor and spray sensor threads with heat valve lubricant. Allow to soak a few minutes, then carefully back out oxygen sensor (care is required to avoid damaging threads in exhaust pipe).
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