How to replace the left side exhaust manifold on 4.8L, 5.3L, 6.0L, and 6.2L engines on 2009 GMC Sierra 1500?

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The first step to replace exhaust manifolds on 4.8l, 5.3l, 6.0l and 6.2l engines necessitates installing the j 42640 (Steering Column Anti-Rotation Pin) into the Steering Column lower access hole. The first task requires removing the left wheelhouse liner followed by complete vehicle lifting and proper support. Lower the vehicle partially using the jacking points before accessing the wheel opening for work. To disconnect the engine wires you need to twist boot sections one half-turn before extracting the boot from the Spark Plug and Ignition Coil connections. Write down how the upper intermediate Steering Shaft links to the Steering Column before proceeding to detach it by removing the Steering Shaft coupling bolt and nut. The technician must remove the Exhaust Manifold bolts before extracting the Exhaust Manifold body while throwing away the Exhaust Manifold Gasket along with the Catalytic Converter seal. To switch out the Exhaust Manifold remove first all the heat shield bolts before taking away the shield itself. Fitting the heat shield to the Exhaust Manifold requires securing it with bolts that should be tightened to 9 nm (80 lb in). Threads of Exhaust Manifold bolts require cleaning followed by application of threadlock gm p/n 12345493 (Canadian P/N 10953488) as a 5 mm (0.2 in) wide band. Screw in a new Catalytic Converter seal before putting in position the new Exhaust Manifold Gasket and Exhaust Manifold onto the Cylinder Head with attention to correct fitting to the Catalytic Converter. Begin with the middle bolts when installing the Exhaust Manifold bolts before following a pattern of side-to-side tightening starting at 15 nm (11 lb ft) and finishing with a final 20 nm (15 lb ft). Place the gasket tab bend at the Cylinder Head edge while lining the upper intermediate Steering Shaft correctly in front of the Steering Column. Install the Steering Shaft coupling bolt along with the nut on the upper intermediate Steering Shaft before torquing it to 50 nm (37 lb ft). For correct connection of the Spark Plug Wires to spark plugs and ignition coils ensure each boot receives proper positioning by pushing it to the sides. Fully raise and support the vehicle and proceed to install the Catalytic Converter by securing its Exhaust Manifold nuts to 50 nm (37 lb ft) torque. Recover the vehicle height and reinstall the left wheelhouse liner before taking out the j 42640 tool from the Steering Column lower access opening.

OEM 2009 GMC Sierra 1500 Exhaust Manifold

4 Exhaust Manifolds found

2009 GMC Sierra 1500 Exhaust Manifold, Driver Side
Part Number: 12616285

2009 GMC Sierra 1500 Exhaust Manifold, Passenger Side
Part Number: 12592083

2009 GMC Sierra 1500 Exhaust Manifold, Driver Side
Part Number: 12592082

2009 GMC Sierra 1500 Exhaust Manifold
Part Number: 12677665

2009 GMC Sierra 1500 Exhaust Manifold

2009 GMC Sierra 1500 Exhaust Manifold Parts Questions & Experts Answers

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