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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Engine Controls - Removal & Installation, Overhaul) >> Engine Sensors & Switches >> Upstream Heated Oxygen Sensor >> Removal (3.1L & 3.4L)

Removal (3.1L & 3.4L)

WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Upstream heated oxygen sensor is mounted on exhaust manifold. See Figure . Turn ignition off. Disconnect upstream heated oxygen sensor harness connector. Using Oxygen Sensor Socket (J-39194-B), remove upstream heated oxygen sensor.

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