G6 V6-3.9L (2009)
Tighten the sensor to 42 Nm (31 lb ft).
6. Lower the vehicle to the ground, start the engine, and check for exhaust leaks.
7. Connect the HO2S electrical connector (2).
8. Install the CPA retainer (1).
9. Install the muffler assembly. Refer to Exhaust Muffler Replacement (LE5 With MH8) (See: Muffler/Service and Repair)Exhaust Muffler
Replacement (2.4L, 3.5L, and 3.9L) (See: Muffler/Service and Repair)Exhaust Muffler Replacement (LY7, LZ9) (See: Muffler/Service and
Repair).
10. Install the rear stabilizer shaft. Refer to Stabilizer Shaft Replacement (See: Steering and Suspension/Suspension/Stabilizer Bar/Service and
Repair/Rear Suspension).
11. Install the right (rear) catalytic converter nuts (1).
Tighten the nuts to 31 Nm (23 lb ft).