Impala V8-5.3L VIN C (2006)
4. Install the exhaust manifold heat shield (603).
5. Install the exhaust manifold heat shield bolts (604).
Tighten the bolts to 9 Nm (80 inch lbs.).
6. Install the O2 sensor.
7. Raise the vehicle.
8. Remove the mechanics wire from the exhaust system and connect the catalytic converter.
9. Install the exhaust crossover pipe nuts to the right exhaust manifold.
Tighten the nuts to 25 Nm (18 ft. lbs.).
10. Install the ignition coil.
11. Install the spark plugs.
12. Install the fuel injector sight shield.
