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Old Jul 14, 2006 | 11:18 PM
  #1  
mustangmike's Avatar
mustangmike
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5.4 misfire

Has anyone acutually figured out a way to cure the 5.4 misfire problem? because my has really been acting up lately,and yes i have cleaned the maf,and did nothing for the problem?
 
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Old Jul 15, 2006 | 12:18 AM
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LxMan1
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Are you getting any codes? Sounds like a failing COP to me.
 
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Old Jul 15, 2006 | 07:17 AM
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Time to get the misfire counters read at a good auto shop
How many miles on this 5.4?
Have you changed plugs yet ? and boots?
Have you looked for water in the sparkplug holes?
Yes as stated cop's do fail on these engines.

Rich
 
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Old Jul 15, 2006 | 12:44 PM
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5.4 misfire

I have not taken my truck in to anybody yet.I just dont want to replace parts that are going to fix the problem.What does cop stand for? Iam by no means a mechanic! Ineed guys like you to help me figure it out so i can tell someone who can fix it.
thanks!
 
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Old Jul 15, 2006 | 12:46 PM
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Oh the truck has 83,000 miles on it.
 
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Old Jul 15, 2006 | 05:52 PM
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FortyFords
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Coil on Plug

The design of the modular 5.4 has a coil for every sparkplug it actually sits on top of it. No sparkplug wires anymore.Under the coil is a boot thta protects the spring connection to the plug and will prevent moisture from shorting out the plug .
But because of heat build up .The coils go bad and the boots burn up.

Rich
 
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