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How do you change spark plugs in a Ford F150 4.6 engine?
Last week, I bought a used Ford F150 and would like to try replacing the spark plugs myself. I’ve never done this before. How do you change spark plugs in a Ford F150 4.6 engine?
Rachel Rigolino · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
That’s great you want to attempt a new DIY project! For this, you’ll need to set aside a few hours and assemble the right tools and supplies.
Here are the general steps you’ll need to follow, but consult your owner’s manual, particularly, if this is your first time changing out spark plugs.
- Step 1: Collect the following supplies: new spark plugs (and perhaps new ignition coils), compressed air, screw driver, spark plug socket, ratchet extender, anti-seize grease, and torque wrench.
- Step 2: Disconnect the negative battery cable and remove the plastic cover to the engine.
- Step 3: The spark plugs are located below each ignition coil; you’ll need to unplug and remove each ignition coil.
- Step 4: Using compressed air, blow away any debris.
- Step 5: Using your socket wrench, loosen the spark plugs and then unthread each one by hand and take them out.|
- Step 6: Apply a light coat of anti-seize grease to the treads of each spark plug.|
- Step 7: When installing each plug, locate each socket and begin by threading in the plug by hand. When the plug is threaded in place, then use your ratchet to tighten up the plug with your torque wrench according to the directions.|
- Step 8: Place a bit of anti-seize grease on the tip of each ignition coil before replacing them.|
- Step 9: Don’t forget to replace the cover to the engine and reconnect your battery.
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