OEM 2009 Cadillac Escalade Exhaust Manifold

2009 Cadillac Escalade Exhaust Manifold Parts and Q&A

• Q: How to replace the left side exhaust manifold on 2009 Cadillac Escalade?

  A: The first step when replacing the left side Exhaust Manifold is to position the j 42640 (Steering Column Anti-Rotation Pin) into the Steering Column lower access hole. The repair process begins by taking out the left wheelhouse lining then thoroughly raising and supporting the vehicle frame. To perform this task you need to take off the Exhaust Manifold nuts from the Catalytic Converter and then lower the vehicle until you have access through the wheel opening (1500 series shown, 2500 series follows similar procedure). After twisting each boot half a turn, use your hands only to pull the Spark Plug Wires away from the spark plugs before conducting the identical steps with the ignition coils. Begin by marking the upper intermediate Steering Shaft position regarding the Steering Column before uninstalling the coupling bolt and nut that secures the upper intermediate Steering Shaft from the Steering Column. You need to uninstall the Exhaust Manifold bolts and Exhaust Manifold while throwing away both the Exhaust Manifold Gasket and Catalytic Converter seal. The Exhaust Manifold heat shield requires removal of its bolts before the shield can be taken off. To install the Exhaust Manifold heat shield attach it to position first before securing its bolts at 9 nm torque (80 lb in). Apply gm p/n 12345493 threadlock gm p/n 12345493 (Canadian P/N 10953488) as a 5 mm (0.2 in) wide band on the Exhaust Manifold bolts before cleaning their threaded portions. I placed the new Catalytic Converter seal and set the new Exhaust Manifold Gasket and Exhaust Manifold against the cylinder head with complete Catalytic Converter seating. Tighten the Exhaust Manifold bolts by starting with the middle two going from center to sides before finishing at 20 nm (15 lb ft) while following the alternating pattern. .floor punch to bend the gasket tab at the Exhaust Manifold's rear then align Steering Column and upper intermediate Steering Shaft marks before installing the shaft to the column. Screw the Steering Shaft coupling bolt along with its nut to the upper intermediate Steering Shaft before tightening them to 50 nm (37 lb ft). Check the installation of Spark Plug Wires to spark plugs and ignition coils before conducting a proper inspection. Fully raise and support the vehicle before installing the Catalytic Converter to Exhaust Manifold nuts and tightening them to 50 nm (37 lb ft). The technician should lower the vehicle partially before reinstalling the left wheelhouse liner followed by removing the j 42640 from the Steering Column access hole.