GM 19420131
Oxygen Sensor

You must begin Exhaust Manifold (LK5) replacement by putting on protective goggles along with gloves to maintain safety. Start with extracting the exhaust seal and after that remove the Exhaust Manifold heat shield. The next step requires removal of Exhaust Manifold retaining bolts followed by extraction of Exhaust Manifold together with its gasket for disposal of the old gasket. Exhaust Manifold inspection should follow cleaning before you add a brand-new Exhaust Manifold Gasket to the Cylinder Head. The Exhaust Manifold needs to be placed on the Cylinder Head while the threads of bolts require gm p/n 12345493 threadlock application (Canadian P/N 10953488). After manual arrangement of the Exhaust Manifold bolts apply torque to 20 nm (15 ft. Lbs.) three times in a sequential manner. The last step includes reinstalling the Exhaust Manifold heat shield together with the exhaust seal.

The first step for exhaust manifold (L52) replacement involves protective goggles and gloves as safety precautions. The first step requires removal of the exhaust seal while also removing the exhaust manifold heat shield. Proceed to detach the retaining bolts from the exhaust manifold before you remove the manifold alongside the gasket which needs to be discarded due to its aged condition. Check the exhaust manifold then perform an inspection before you start mounting it. Position a brand new exhaust manifold gasket onto the cylinder head before setting the exhaust manifold properly. The threads of the exhaust manifold bolts require GM threadlocker P/N 12345493 (Canadian P/N 10953488) before bolt installation. First apply threadlock GM P/N 12345493 (Canadian P/N 10953488) to the exhaust manifold bolts and then tighten them in sequence to 20 Nm (15 ft. lbs.) for each bolt. The last step entails fastening the exhaust manifold heat shield followed by installing the exhaust seal.