Ford Truck Enthusiasts Forums - View Single Post - 2006 5.4 Spark Plug Change- 100% success & procedure I used
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Old 05-03-2011, 09:50 PM
Mustangtoby2001 Mustangtoby2001 is offline
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Join Date: May 2005
Location: sw colorado
Posts: 218
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My company has had good luck running a can of Seafoam through a couple of tanks of fuel prior to changing plugs in the company trucks. Our shop forman says no carbon on any of them with 3 tanks Seafoam ran through them. Take it for what it's worth, I'm at 70k on my personal F150 and thinking this summer would be a good time to change plugs. Seafoam can't hurt to try.
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