F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
Spark Plug: Service and Repair
SPARK PLUG
REMOVAL
1. Remove the coil on plugs.
2. NOTE: Remove any foreign material from the spark plug wells with compressed air before removing the spark plugs.
Remove the spark plugs.
3. Inspect the spark plugs.
4. Adjust the spark plug gap as necessary.
INSTALLATION
1. To install, reverse the removal procedure.
