OEM Lincoln MKX Spark Plug

Lincoln MKX Spark Plug Parts and Q&A

• Spark Plug
  AYFS-22F-MX
  Q: How to service and repair the spark plugs on Lincoln MKX?

  A:

  The spark plug maintenance process begins with disconnecting the crankcase vent tube quick connect coupling from the valve cover fitting on the LH side then moving it to the side. The spark plugs need the upper intake manifold removal to reach them from the RH side. First disconnect the six ignition coil-on-plug electrical connectors that exist on the system. Apply a twisting motion when removing ignition coil-on-plugs so you can break the seals and simplify the removal process. Use hand tools only to remove the six bolts while also removing the six ignition coil-on-plugs by breaking the seals before setting them aside. Use compressed air to blow out foreign objects from the spark plug well before starting to detach the six spark plugs. Check the six removed spark plugs before changing the gap if required. Fasten the six spark plugs at a torque of 15 Nm (11 lb-ft). Before attaching the boots to the spark plugs, apply a minute amount of dielectric grease, and install the six ignition coil-on-plug units together with six bolts which need to be tightened to 7 Nm (62 lb-in). Position the upper intake manifold on the RH side after reconnection of the six ignition coil-on-plug electrical connectors and complete the operation by connecting the crankspace vent tube quick connect coupling to its corresponding fitting on the LH side of the valve cover.