Silverado 1500 2WD V6-4.3L (2007)
Tighten the sensor to 42 N.m (31 lb ft).
3. If vehicle is a 4WD perform the following steps otherwise proceed to step 7.
4. Install the HO2S pigtail electrical connector clip (9) to the fuel line bracket.
5. Connect the engine wiring harness electrical connector (7) to the HO2S pigtail electrical connector (8).
6. Connect the CPA retainer.
7. If vehicle is a 2WD perform the following steps, connect the HO2S pigtail electrical connector (7) to the engine wiring harness electrical
connector (6).
8. Connect the CPA retainer.
9. Lower the vehicle.
