300 V6-3.5L (2008)
7. Remove the oxygen sensor from the exhaust manifold.
Left
LEFT EXHAUST MANIFOLD
NOTE: If replacing the exhaust manifold, tighten the exhaust outlet studs to manifold to 40 Nm (350 in.lbs.).
1. Position the exhaust manifold (7) and gasket (1). Install the retaining bolts (2). Tighten 4 bolts starting at the center working outward to 23 N.m
(200 in. lbs.).
2. Install the exhaust manifold heat shields (5,6). Tighten the bolts to 12 Nm (105 in. lbs.).
3. Tighten the out most stud nuts to 8 Nm (73 in.lbs.).
4. Connect the oxygen sensor.
5. Raise and support the vehicle.
6. Connect the exhaust pipe to manifold union (3). Tighten the exhaust stud nuts to 34 Nm (300 in.lbs.).
7. Connect the negative battery cable.
Right
RIGHT EXHAUST MANIFOLD
1. Clean gasket surfaces.
NOTE: If replacing the exhaust manifold, tighten the exhaust outlet studs to 39 Nm (350 in.lbs.).
2. Position the exhaust manifold and gasket. Install the retaining bolts. Tighten 4 bolts starting at the center working outward to 23 N.m (200 in. lbs.).
3. Install the heat shields. Tighten the heat shield fasteners to 12 Nm (105 in.lbs.).