OEM 2008 Lincoln MKZ Exhaust Manifold

2008 Lincoln MKZ Exhaust Manifold Parts Q&A

• Q: How to service and repair the right-hand (RH) exhaust manifold on 2008 Lincoln MKZ?

  A: You must detach the RH heated oxygen sensor (HO2S) electrical connector followed by removing the RH catalytic converter to work on repairing or servicing the RH exhaust manifold. The six nuts connecting the RH exhaust manifold require removal before you should dispose of both parts along with their gasket. First clean the RH exhaust manifold followed by inspections before discarding the six RH exhaust manifold studs. The service requires using only a plastic scraper to avoid surface damage while following metal surface prep instructions for suitable cleaning of the exhaust manifold mating surface on the cylinder head. You should use six new RH exhaust manifold studs which must be tightened to 12 Nm (9 lb-ft). Preventing leakages in the exhaust depends on performing a proper torque relap of the exhaust manifold nuts before final tightening. The RH exhaust manifold needs installation with new gaskets then you should fasten it with six new nuts while applying 20 Nm (15 lb-ft) torque first and repeating the torque to 20 Nm (15 lb-ft). Complete installation by reconnecting the RH HO2S electrical connector before reinstalling both the right-hand catalytic converter.