On the Ford Triton engines a separate coil is used for each cylinder. The coils are mounted over the top of the spark plugs. To access the spark plugs, remove the screws that secure the coils to the top of the cylinder heads and gently pull up on the coil to remove it and the short 3-4 inch plug wire that attaches the coil to the plug. A special knuckle joint or flex extension will be required to remove some of the plugs located at the rear of the engine.
There are 4 spark plugs on the drivers side of the truck, four on the passenger side of the truck.
i know if you have the 5.4L V8 you will have coil packs. not spark plugs
They are on top of the cylinder head below the coil packs. If you are replacing them it will be BEST to use Motorcraft plugs and to put anti-seize on the threads.
Screwed in the heads.
The spark plug firing order for the 4.2 L V6 engine is ( 1 - 4 - 2 - 5 - 3 - 6 )
The 4.6 L Triton wasn't used in the F-150 until 1997
I believe the dealership gets 190.00 time and plugs
11500 lbs
8
www.motorcraft.com shows .054 inch
.052 - .054
Mine is 3:55
1998 ford f150 5.4 liter v8 triton 4x4 20 amp fuse is not blown but has no power to it for the trailer stop & turn but has running lights