2002 Ford F150 Spark plug

2002 FORD F-150
78,077 MILES • V8 • 4WD • AUTOMATIC
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BUD ARDEN
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My son had his truck recently tune up. The dealer seemed to have left a spark plug loose. It now has came out damaging the last 2 threads in the head. I know the thread size is 14mm but I cannot find the pitch. They told him at the dealer ship the torque on the plugs is only 15 ftlbs. is that right. I would like an answer asap as he can not drive the truck. Thank you


updated 2-1-10
you answered the question about the torque what about the thread pitch?
Jan 28, 2010 at 11:21 AM
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DOCFIXIT
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Engine a 4.2L? if yes then plug torque is 11 ft.lb.
5.4L then 15 ft.lb.
Jan 28, 2010 at 11:32 AM
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DOCFIXIT
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Pitch 1.25
Feb 1, 2010 at 12:45 PM