Second Plug Change after TSB
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Sick 'n Tired
Joined: May 2006
Posts: 2,969
Likes: 47
From: League City, TX
Second Plug Change after TSB
So I've got about 13K miles on the replaced plugs motorcraft plugs. I accidentally/inadvertently put in the wrong plugs because the Oreilly's guy sold me the wrong plugs...SP462. Those are for the 4.6L engine. My bad for trusting an auto store teenager with an inaccurate computer. I couldn't find any posts that specified if there was actually any difference between the SP462 and SP507 plugs and the truck ran just fine. But I didn't want to take any chances. I was able to get 8 new SP507 plugs on special at Advance Auto for $40, so I figured what the heck.
They all came out just fine with about 35 ft/lbs of pressure. All the anti-seize had burnt off and you could tell where the carbon was starting to build up around the metal sleeve. But, for the most part they looked fine. The SP426 is a little bit shorter than the SP507 and end of the plug and strap is a little different as well.
They all came out just fine with about 35 ft/lbs of pressure. All the anti-seize had burnt off and you could tell where the carbon was starting to build up around the metal sleeve. But, for the most part they looked fine. The SP426 is a little bit shorter than the SP507 and end of the plug and strap is a little different as well.
Elder User
Joined: May 2004
Posts: 653
Likes: 0
From: nc
So, i take it that when you put the anti sieze on it, they come out a whole lot easier. I'm getting ready to tackle it, i just turned 50k(first set). I'm debating on motorcraft or champion. But if the second set doesnt break then i'll probally go with motorcraft.
Posting Guru
Joined: Mar 2004
Posts: 1,195
Likes: 0
From: Sunapee NH
In my case, the answer is yes. Plug change number 2 for me took less then an hour including the min 15 minutes soak time per the TSB. But I have read about folks who broke plugs on round 2, so follow the TSB.
Good luck
Good luck
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rferoni
2004 - 2008 F150
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Dec 30, 2009 10:13 AM
2001, 2006, change, difference, expedition, f150, ford, motorcraft, muffler, plug, plugs, sp426, sp462, sp507, tsb
