Ford AGSF-22W- Spark Plug

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On these vehicles, the spark plugs are located at the top of the engine. In most cases, the tools necessary for spark plug replacement include a spark plug socket which fits onto a ratchet, various extensions and a gap gauge to check and adjust the gaps on the new plugs. A torque wrench should be used to tighten the new plugs. The best approach when replacing the spark plug is to purchase the new ones in advance, adjust them to the proper gap and replace the plugs one at a time. When buying the new sparkplugs, be sure to obtain the correct plug type for your particular engine. This information can be found on the Emission Control Information label located under the hood or in the factory owner's manual. If differences exist between the plug specified on the emissions label or in the owner's manual, assume that the emissions label is correct. Allow the engine to cool completely before attempting to remove any of the plugs. These engines are equipped with aluminum cylinder heads, which can be damaged if the spark plugs are removed when the engine is hot. While you are waiting for the engine to cool, check the new plugs for defects and adjust the gaps. The gap is checked by inserting the proper thickness gauge between the electrodes at the tip of the plug. The gap between the electrodes should be the same as the one specified on the Emissions Control Information label. If the gap is incorrect, use the adjuster on the gauge body to bend the curved side electrode slightly until the specified gap is obtained. These engines are equipped with individual ignition coils which must be removed first to access the spark plugs. If compressed air is available, use it to blow any dirt or foreign material away from the spark plug hole. Place the spark plug socket over the plug and remove it from the engine by turning it in a counterclockwise direction. Compare the spark plug to those shown in the photos located on the inside back cover to get an indication of the general running condition of the engine. Apply a small amount of anti-seize compound to the spark plug threads. Install one of the new plugs into the hole until you can no longer turn it with your fingers, then tighten it with a torque wrench or the ratchet. It is a good idea to slip a short length of rubber hose over the end of the plug to use as a tool to thread it into place. Before pushing the ignition coil onto the end of the plug, inspect it. Repeat the procedure for the remaining spark plugs.

Vehicles equipped with 4.2L engines have the spark plugs located on the sides of the engine, while those with 4.6L and 5.4L engines have them at the top. For spark plug replacement, you'll need a spark plug socket, various extensions, a gap gauge, and possibly a special plug wire removal tool. A torque wrench is also recommended. It's best to buy the new plugs in advance, adjust them to the proper gap, and replace them one at a time. Make sure to get the correct plug type for your engine. Let the engine cool completely before removing any plugs. While waiting, check the new plugs for defects and adjust the gaps. The gap is checked by inserting the proper thickness gauge between the electrodes at the tip of the plug. If the gap is incorrect, adjust it using the gauge body. With the engine cool, remove the spark plug wire from one plug. If compressed air is available, use it to blow any dirt or foreign material away from the spark plug hole. Remove the plug from the engine by turning it counterclockwise. Compare the old plug to a chart to get an indication of the engine's running condition. Apply anti-seize compound to the new plug threads and install it into the hole. Tighten it with a torque wrench or ratchet. Inspect the spark plug wire before attaching it to the new plug. Repeat the procedure for the remaining plugs, replacing them one at a time to prevent mixing up the wires.