C 1500 Truck 2WD V6-4.3L VIN W (2001)
5. Install the exhaust manifold.
6. If reusing the fasteners, apply threadlock GM P/N 12345493 or equivalent to the threads of the exhaust manifold bolts.
7. Install the exhaust manifold bolts.
7.1.
Tighten the exhaust manifold bolts on the first pass to 15 Nm (11 ft. lbs.).
7.2.
Tighten the exhaust manifold bolts on the final pass to 30 Nm (22 ft. lbs.).
8. Install the AIR pipe assembly, if equipped to the exhaust manifold.
9. Install the spark plug wires to the spark plug wire retainers.
10. Connect the spark plug wires to the spark plugs.
11. Raise the vehicle. Refer to Vehicle Lifting.
12. Install NEW exhaust manifold pipe seals to the exhaust manifolds.
13. Install the right exhaust manifold pipe nuts until sung.
14. Tighten the exhaust manifold pipe nuts.
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Tighten the exhaust manifold pipe nuts to 50 Nm (37 ft. lbs.).
15. Lower the vehicle.