OEM Cadillac Escalade EXT Exhaust Manifold

Cadillac Escalade EXT Exhaust Manifold Parts Questions & Experts Answers

• Exhaust Manifold
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  Q: How to remove and install the left exhaust manifold on Cadillac Escalade EXT?

  A: The first step to remove the left Exhaust Manifold requires Ignition Coil removal followed by Spark Plug extraction before raising and suspending the vehicle. After lowering the vehicle users can reach the Exhaust Manifold bolts as well as the manifold and gasket to remove them while discarding the components. Under rare circumstances you must detach heat shield bolts as well as shield pieces from the Exhaust Manifold. Inspect and clean the Exhaust Manifold only when the replacement is not required. You should connect heat shield along with bolts onto Exhaust Manifold unless otherwise required then torque all bolts to 9 nm (80 inch lbs.). Proper installation of Exhaust Manifold bolts will avoid emissions problems while clean threads remain present in the cylinder head Exhaust Manifold bolt holes. Avoid applying any sealant compound to the first three threads of each bolt. A 5 mm (0.2 inch) band of threadlock gm p/n 12345493 (Canadian P/N 10953488) should be applied to each Exhaust Manifold bolt thread before installing the Exhaust Manifold and new gasket with the bolts. Begin by tightening the center two bolts while alternating from side to side until they reach 15 nm (11 ft. Lbs.). Then finish up by torquing all bolts to 25 nm (18 ft. Lbs.) by following the same side-to-side pattern. If you position a flat punch on the exposed gasket at the rear of the left cylinder head then raise the vehicle you can install the Exhaust Manifold pipe nuts by torquing them to 50 nm (37 ft. Lbs.). At the end of the process you should lower the vehicle before putting the spark plugs and ignition coils back in place.