Astro Van 2WD V6-4.3L VIN W (2001)
1. Coat the threads of the oxygen sensor with anti-seize compound GM P/N 5613695, if necessary.
NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
2. Install the HO2S (4) using a J 39194-B.
Tighten
Tighten the sensor to 42 N.m (31 lb ft).
3. Connect the HO2S harness connector (3).
4. Lower the vehicle.