How to change spark plugs on 05 ford freestar 4.2 liter

SOURCE: replace spark plugs on a ford freestar

I have a 2004 ford freestar and it's missing a lot I changed the spark plugs and fuel filter. what else can I do ?

SOURCE: i have a 2007

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SOURCE: How do I change spark plugs in 1995 Mitsubishi Mirage?

Those shouldn't be too hard to change.
You'll need:

3/8 drive ratchet
6 inch extension
5/8 inch spark plug socket
gap tool for spark plugs (Autozone usually has them at the counter)
anti seize compound
torque wrench for tapered seat spark plug (beam style)

First you need to remove the spark plug wires from end of the spark plugs. To remove a wire/boot grab the boot at the top and twist it a couple of times to break the boot loose from the plug. Don't pull the boot out by the wire. Once it is loose pull up on the boot to remove the wire/boot. Take note of which wire goes where. If you have any damaged wires, wires that have white flash burns, boots that are contaminated with engine oil, or boots that are damaged you should replace the wires/boots as a set.

Put together your ratchet, extension, and socket. Remove the spark plugs by turning CCW.

Using the gap tool make sure that the gaps are set correctly on your plugs. All platinum and iridium plugs come pre-gapped and should be inspected before you purchase them at the counter. The gap specifications should be on the underhood sticker. It is probably .044 inch. If they are platinum or iridium plugs, it isn't recommended to use a coin or wire gap tool because you may damage the center electrode or ground strap points.

Apply a tiny amount of anti seize to the spark plug threads. The anti seize will aid in installation and removal later on. Carefully tighten the spark plug. If the plug you are installing is equipped with a crush washer, seat the plug, then tighten about 1/4 turn to crush the washer. If you are installing a tapered seat plug, tighten the plug with a torque wrench to specifications provided by the vehicle or plug manufacturer.


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