Oxygen Sensor - Installation

5.7L






DOWNSTREAM O2S SENSORS

Threads of new oxygen sensors are factory coated with anti-seize compound to aid in removal. Do not add any additional anti-seize compound to threads of a new oxygen sensor.

1. Using the appropriate oxygen sensor removal/installation tool, install the O2S sensors (3,4) and tighten to 41 Nm (30 ft. lbs.).
2. Connect the O2S sensors electrical connectors.
3. Raise the transmission and install the crossmember to frame bolts and tighten to 68 Nm (50 ft. lbs.), remove the safety stand or jack.
4. Lower the vehicle.

UPSTREAM O2S SENSORS

Threads of new oxygen sensors are factory coated with anti-seize compound to aid in removal. Do not add any additional anti-seize compound to threads of a new oxygen sensor.

1. Using the appropriate oxygen sensor removal/installation tool, install the O2S sensors (1,2) and tighten to 41 Nm (30 ft. lbs.).
2. Install the left catalytic converter heat shield.
3. Connect the O2S sensors electrical connectors.
4. Lower the vehicle.