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Old December 8th, 2012, 09:57 AM   #1
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Default what is a good replacement plug for 3v 06 5.4

Need advice on what spark plug to put into a 2006 Ford F150 with a 5.4. Just don t want to put the same two peace junk spark plug back in the truck.
thanks in advance for any advice
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Old December 8th, 2012, 06:28 PM   #2
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Autolite HT1 is suppose to be redesigned to fix the problem, I believe it is one piece, and the bottom part that gets stuck is 10 tho smaller. Make sure you spend the money on the Lisle tool if you haven't done one before.
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Old December 8th, 2012, 06:43 PM   #3
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Motorcraft is the only way to go. The I rarely break off a plug that has been replaced before. The plugs have been updated tons of times to their current level. Put a SMALL amount of anti seize on the lower part (not the threads) before you install them.
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Old December 8th, 2012, 06:56 PM   #4
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champions are one piece too, motorcrafts are still welded two piece. not sure bout autolites,
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Old December 8th, 2012, 07:13 PM   #5
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I know they are, but I have had to replace too many champions/autolites for misfire issues
after replacement.
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Old December 9th, 2012, 07:27 PM   #6
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Quote:
Originally Posted by 88fordman View Post
Motorcraft is the only way to go. The I rarely break off a plug that has been replaced before. The plugs have been updated tons of times to their current level. Put a SMALL amount of anti seize on the lower part (not the threads) before you install them.
X2

I have fixed random mis-fire codes by replacing aftermarket plugs in these motors with OE plugs.
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Old December 10th, 2012, 08:19 AM   #7
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Thanks for all the information. I think I am going to go with motorcraft plugs
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