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Motorcraft Platnum - 4.6L Spark plug change, 2005 F150

   
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Old 06-11-2011, 11:59 AM
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Motorcraft Platnum - 4.6L Spark plug change, 2005 F150
2 1/2 hours from start to finish, couple of busted knuckles and several prayers later...Out with the old in with the new. New versus old plug in the photo. Original plug on right had 127K miles on them.

 
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Old 06-11-2011, 12:03 PM
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Good job. It should be running a little happier.
 
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Old 06-11-2011, 03:08 PM
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so i take it the 4.6 the plugs dont break off like the 5.4
 
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Old 06-11-2011, 03:29 PM
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Originally Posted by monoxide
so i take it the 4.6 the plugs dont break off like the 5.4
No, tey do not break, completely different plug.
 
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Old 06-11-2011, 04:42 PM
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Bluejay, how often are we suppose to change these plugs?
 
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Old 06-11-2011, 04:58 PM
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Factory recommendation is 100k.
 
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Old 06-11-2011, 05:54 PM
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when u change plugs do u have to change coil packs to? im almost to 100k and was gonna do my plugs
 
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Old 06-11-2011, 05:58 PM
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Only if it runs rough or misses after you change the plugs.
 
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