TrailBlazer 4WD L6-4.2L (2007)
Tighten the heat shield studs to 10 N.m (89 lb in).
5. Install the manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement.
6. Raise the vehicle.
7. Install the exhaust pipe to the manifold with seal and secure the pipe with the nuts.
Tighten the exhaust pipe nuts to 50 N.m (37 lb ft).
8. Lower the vehicle.