Sensor, Oxygen: Installation: 5.7L: Upstream
If reinstalling the original oxygen sensor, coat the sensor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on the threads and do not require an additional coating. Do Not add any additional anti-seize compound to the threads of a new oxygen sensor.
Left side shown in illustration, right side similar.
- Install the oxygen sensor (1) and tighten to the proper specification. Refer to FUEL INJECTION, GAS, TECHNICAL SPECIFICATIONS .CAUTION:
Never apply any type of grease to the oxygen sensor electrical connector, or attempt any repair of the sensor wiring harness.
- Position and secure the oxygen sensor wire harness in the wire harness retainer (2).
- Connect the oxygen sensor wire harness connector (3).
- Remove support and lower the vehicle.
- Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.