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Re: New Motorcraft plug released?
Posted to Technical Discussion Forum on 7/1/2011 2 Replies

G'morning Roy!

Had an 06 F150 5.4L code 5 in yesterday - ran like poo, no code no MIL. As it was wicked overdue for secondary ignition maintenance we replaced plugs and boots - new part number on the plugs in Motorcraft is SP515 (of course, repairs done on a... Login to read more.

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