To change the spark plugs on a 2012 Ford F-150 with a 3.7L engine, first, ensure the engine is cool and disconnect the battery. Remove the engine cover if necessary, then carefully disconnect the ignition coil connectors and unbolt the coils to access the spark plugs. Use a spark plug socket and ratchet to remove the old spark plugs, apply anti-seize compound to the new plugs, and install them to the specified torque. Reassemble everything by reinstalling the coils and reconnecting the battery.
Copyright © 2026 eLLeNow.com All Rights Reserved.