OEM 2007 Lincoln MKZ Exhaust Manifold

2007 Lincoln MKZ Exhaust Manifold Parts Q&A

• Q: How to service and repair the LH exhaust manifold on 2007 Lincoln MKZ?

  A: A proper repair and servicing of the LH exhaust manifold requires complete removal of the LH catalytic converter and the LH heated oxygen sensor (HO2S). The procedure starts by removing three bolts securing the LH exhaust manifold heat shield after which you need to remove six nuts securing the LH exhaust manifold while disposing both the nuts and gasket. The service technicians should clean the LH exhaust manifold before discarding the 6 LH exhaust manifold studs. Use a plastic scraper to remove dirt because metal scrappers or wire brushes or abrasive tools may generate leaks on the sealing surfaces through scratches or gouges. Clean the exhaust manifold mating surface of the cylinder head by following the packaging instructions for metal surface prep. New LH exhaust manifold studs should be installed with a torque specification set to 12 Nm (9 ft. lbs.). The LH exhaust manifold installation requires new gaskets and 6 new nuts which should be tightened in a certain order to 20 Nm (15 ft. lbs.). Begin by fixing the LH exhaust manifold heat shield in place through its 3 bolts while applying a torque of 25 Nm (18 ft. lbs.). The next step is to install the LH HO2S before completing the installation with the LH catalytic converter.