how to change spark plugs


Asked by Oct 28, 2015 at 04:36 PM about the 2003 Ford F-150

Question type: Maintenance & Repair

bought new plugs and wires for 2003 ford f-150 5.4 litre and cant even find the plugs in the motor

2 Answers


There are no plug wires on a 2003 5.4L. There are coil packs on top of the plugs though. When changing the plug be sure and use anti- seize on the plug threads as they can seize up in the aluminum head.


And do not exceed the torque in inch pounds as recommended by Ford when installing the new plugs. It's isn't much, maybe 160 inch pounds, if that. Stripping out the threads on a head gets expensive to repair, and a big pain in the butt.

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