TrailBlazer 2WD V8-5.3L (2007)
7. Remove the nuts securing the right catalytic converter to the exhaust manifold.
8. Lower the catalytic converter assembly until it rests on the vehicle frame.
9. Use the following procedure if the vehicle is equipped with 2-wheel drive (2WD):
1. Support the transmission with a suitable transmission jack.
2. Remove the transmission support.
3. Lower the transmission slightly.
4. Remove the EVAP/fuel hose/pipe assembly from the retaining clips (1) on the transmission.
