F 150 4WD V8-5.4L Flex Fuel (2008)
Engine Ignition - LH
Exploded View
Removal and Installation
All vehicles
1. Remove the ignition coil-on-plug.
Early build
2. CAUTION:
-
Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make
sure the engine is warm (hand touch after cooling down) prior to spark plug removal.
-
Only use hand tools when removing or installing the spark plugs or damage can occur to the cylinder head or spark plug.
-
The spark plug gap is NOT adjustable. Damage can occur to the ceramic if the gap is adjusted. Replace the spark plug if the gap is out
of specification.
NOTE:
-
Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.
-
If an original spark plug is used, make sure it is installed in the same cylinder from which it was taken. New spark plugs can be used in any
cylinder.
-
Refer to the specifications for correct spark plug identification.
Remove the spark plugs.
-
To install, tighten to 34 Nm (25 lb-ft).
Late build
