Spark Plugs: Installation

WARNING: This page is about a different car, the 2009 Mercury Milan and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the spark plugs.

Item	Part Number	Description
1	-	Deposits bridging spark plug gap
2	-	Wet black deposits (oil fouling)
3	-	Dry black deposits (carbon fouling)
4	-	Normal spark plug
5	-	Pre-ignition
6	-	Overheating
7	-	Fused spot deposits

Fig 1: Identifying Spark Plugs Condition

Courtesy of FORD MOTOR CO.

Adjust the spark plug gap as necessary.

Fig 2: Spark Plug Gap With Specification

Courtesy of FORD MOTOR CO.

CAUTION: Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.

Install the spark plugs.
- Tighten to 12 Nm (9 lb-ft).

NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.

Install the 4 ignition coils and bolts.
- Tighten to 10 Nm (89 lb-in).
Connect the 4 ignition coil electrical connectors.
Install the generator air inlet duct and the 2 nuts and the bolt.
- Tighten to 6 Nm (53 lb-in).

Fig 3: Locating Generator Air Inlet Duct, Bolt And Nuts

Courtesy of FORD MOTOR CO.