Envoy 2WD V8-5.3L (2007)
4. Install the right exhaust manifold pipe nuts. Ensure the catalytic converter is held in the installed position before tightening the nuts.
Tighten the nuts to 50 N.m (37 lb ft).
5. Install the left exhaust manifold pipe nuts.
Tighten the nuts to 50 N.m (37 lb ft).
6. Install the transmission support. Refer to Transmission Support Replacement.
7. Remove the transmission jack.
8. If equipped with 4WD, install the front propeller shaft. Refer to Front Propeller Shaft Replacement.
9. Install the rear propeller shaft. Refer to Rear Propeller Shaft Replacement.
Important: A special anti-seize compound is used on the HO2S threads. The compound consists of liquid graphite and glass beads. The
graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors
already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor
is to be reinstalled, the threads must have anti-seize compound applied before the reinstallation.
10. If reinstalling the old sensors, coat the threads with anti-seize compound GM P/N 12377953, or equivalent.
