SPARK PLUGS CHANGE
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
I read the light duty f250 had only the 5.4 but maybe not.
if you have a 4.6 you need to head to the f150 area.
if you have a 4.6 you need to head to the f150 area.
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,841
Likes: 6
It’s got to be in one of those 7 lug f-250 light duty’s. Use motorcraft plugs when you pull the coil and boot off before you loosen the plug use compressed air to blow out the plug well it will be full of crap that you don’t won’t falling in the motor. It will only have four threads per plug hole due to the year but and those were the ones that and the problem with the plugs coming loose at spitting due to a low torque spec from the factory so proper torque is important seems 26ftlbs is enough to keep things where the should be and not damaging he aluminum head. I would also change the boots while your doing this they aren’t expensive and do we our out and crack and arc to the head.
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