Spark Plugs: Installation

Both sides 

1. Inspect the 6 spark plugs. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION article.
2. Adjust the spark plug gap as necessary.
Fig 1: Adjusting Spark Plug Gap With Specification
Courtesy of FORD MOTOR CO.
NOTE: Only use hand tools when removing or installing the spark plugs, or damage may occur to the cylinder head or spark plug.
3. Install the 6 spark plugs.
   • Tighten to 15 Nm (133 lb-in).
NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
4. Install the 6 ignition coil-on-plugs and the 6 bolts.
   • Tighten to 7 Nm (62 lb-in).
5. Connect the 6 ignition coil-on-plug electrical connectors.

RH side 

6. Install the upper intake manifold. For additional information, refer to ENGINE - 3.5L article.

LH side 

7. Position and connect the crankcase ventilation tube-to-valve cover quick connect coupling. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION article.