Tuned the F150 today
03-15-2010, 09:42 PM
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Tuned the F150 today
I did a full tune up on the F150 today that included Autolite XP104 spark plugs, new PVC valve, fuel filter, removed and cleaned the throtle body, cleaned the MAF, cleaned the K&N air filter and the truck now move's like a bat outta hell. I put the XP104's in my Marauder a week ago with excellent results and decided to use them in the truck as well. BTW I got the plugs from RockAuto for $4.66 ea with a $2.00 rebate so that's a deal for an Iridium plug. 
03-17-2010, 07:56 PM
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It's probably a dumb question.... I have to ask it. I did search and saw one thread that touched on it. But I would like to get more solidified answer. Is the dreaded spark plug change only affecting the 3V 5.4s? I have a 4.6L myself. Thank you in advance.
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03-19-2010, 02:26 PM
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Man, I just bought new plugs for my truck and right after I popped the hood I came inside to check and make sure nobody had had problems with the 4.6L. So, you're not alone.
03-22-2010, 08:39 PM
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My Screw has 47,000mi. I turn my own wrenches so I just like to stay on top of things so it was prolly premature but i'm going at it from a preventative measure. It was well worth the effort!