Sierra 1500 4WD V8-5.3L (2008)
Exhaust Manifold: Service and Repair
Exhaust Manifold Replacement - Right Side
Exhaust Manifold Replacement - Right Side (4.8L, 5.3L, 6.0L, and 6.2L)
Removal Procedure
1. Remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) Heated Oxygen Sensor
Replacement - Bank 2 Sensor 1 (2500 Series) Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series - Cab/Chassis) .
2. Fully raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
3. Remove the catalytic converter to exhaust manifold nuts, 1500 series shown, 2500 series similar.
4. Remove the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (GMC) Front Wheelhouse Liner Replacement -
Right Side (Chevrolet) .
5. Remove the spark plug wires (1) from the spark plugs.