Sierra Classic 1500 2WD V8-4.8L (2007)
Installation Procedure
1. If equipped with a 6.0L engine, with RPO Y91, install a new exhaust manifold pipe seal to the exhaust manifold pipe.
2. Install the exhaust manifold pipe.
3. Apply lubricant to the exhaust pipe hanger bracket, in order to aid in installation.
4. Slide the exhaust manifold pipe hanger into the exhaust pipe hanger bracket.
5. Install a new exhaust manifold pipe seal to the exhaust manifold pipe.
6. Install the exhaust manifold pipe.
7. Apply lubricant to the exhaust pipe hanger bracket, in order to aid in installation.
8. Slide the exhaust manifold pipe hanger into the exhaust pipe hanger bracket.
9. Notice: Refer to Fastener Notice in Service Precautions.
Install the exhaust manifold pipe nuts.
Tighten the nuts to 50 Nm (39 ft. lbs.).
10. Using the transmission jack, raise the transmission.
