I would like to know how to change the spark

99 and 02 have different motor 5.4-4.6 some early model have the same size engine check 02 for its size and 99 if they are the same you will only have to change the platinum..

Could be many things. First i would listen for the fuel pump to kick on whenever you turn the key on(without starting). Then if you don't hear it kicking on, check all your fuses. Especially the fuel pump fuse. If none of your fuses are bad, then your fuel pump is shot and you need to replace it. After that, if it still wont start, Check to see if your getting spark to your spark plugs. You can do this by taking the sprk plug out, and keeping it hooked to the wire and have someone try to crank the motor. As they are turning the motor over, see if you see the spark plug sparking. If not, then its your coil packs, or your vehicle is off time. ALSO, try changing the crank sensor. That could be why its not starting as well. Hope this helps, James Booth. Please rate this. :) And good luck with your experiance in trying to crank your vehicle. Have a good day.

I would check your coil packs and plug wires. These newer motors even the spark plug gap will cause problems. Change your fuel filter. A easy way to check for misfires have your codes read but if there is no codes it has to be something simple like plugs or wires.

Check this for 4.6 or 5.4 sizes engine...

2004 Ford Expedition 4.6 liter V-8 VIN "W"




2004 Ford Expedition 5.4 liter SOHC V-8 VIN "L"



Hope this help (remember comment and rated this).

you need to use a long box spanner to undo it,it is thinner than a socket...

Several engine sizes there...

1999 Ford Expedition 4.6 liter SOHC V-8 VIN "6"





1999 Ford Expedition 4.6 liter SOHC V-8 VIN "W"





1999 Ford Expedition 5.4 liter SOHC V-8 VIN "L"




Hope this help to solve it (remmeber comment and rated this).

Hello only1dollie: My name is Roger and I will help. To locate the spark plugs you will need to remove the coils. Each spark plug has its own coil. I enclosed a picture for you to see where the coils are. Should you need further help please just ask. Please rate this answer. This way I know it was helpful. Thank You for using Fix Ya. Roger

Try changing the #3 cylinder spark plug wire or all wires as you probabley have to buy them in a set.

there are a couple of ways.I would remove a plug wire from one of the spark plugs,useing a spark tester that you can pick up at your local parts store insert it into the spark plug wire and have someone crank the motor and you watch the tester.

hey montel, #2 is on the passenger side of engine, starting @ front of engine is #1, next on same side is 2, then 3, 4. Driver side front of engine starts @ #5, then 6,7,8. Let me know if u need more info.