Rainier AWD L6-4.2L VIN S (2005)
1. Install a new exhaust manifold gasket.
2. Install the exhaust manifold.
3. With threadlock GM P/N 12345493 (Canadian P/N 10953488) on the manifold bolts, install the bolts onto the manifold.
Tighten
1. Tighten the exhaust manifold bolts first pass in sequence to 25 Nm (18 ft. lbs.).
2. Tighten the exhaust manifold bolts second pass in sequence to 25 Nm (18 ft. lbs.).
3. Tighten the exhaust manifold bolts final pass in sequence to 25 Nm (18 ft. lbs.).
4. Install the exhaust manifold heat shield studs, if required.
