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#5 coil wiring issue found

 
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Old 05-06-2012, 04:20 PM
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mbw919
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#5 coil wiring issue found

Shortly after giving my '07 FX4 its annual under the hood washing, it started running rough and then gave a P0355 code. I figured it was water in the connection to the #5 coil. It wasn't. I found the wires leading to #5 coil had been rubbing against the underside of the bracket that holds the power steering fluid reservoir. One of the wires had completely worn through. I repaired it and all is well, but thought I would share in case others experience this. I would suggest all 5.4 owners check the #5 coil wiring for wear in this area.
 
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Old 05-06-2012, 06:49 PM
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nice post mbw919. Many will breath a sigh knowing of your fix. LOL
 
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Old 05-07-2012, 09:24 PM
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Originally Posted by mbw919 View Post
Shortly after giving my '07 FX4 its annual under the hood washing, it started running rough and then gave a P0355 code. I figured it was water in the connection to the #5 coil. It wasn't. I found the wires leading to #5 coil had been rubbing against the underside of the bracket that holds the power steering fluid reservoir. One of the wires had completely worn through. I repaired it and all is well, but thought I would share in case others experience this. I would suggest all 5.4 owners check the #5 coil wiring for wear in this area.
Funny you mention #5. When I replacing the Coil Pack on Plug #5 I noticed an "Extra" wire going to it... I guess when they did my Remote start install they tapped into the positive wire going to Plug #5 for some reason.. the idiots didn't even solder it.. simply sliced back some installation and wrapped the new wire around it... Needless to say.. I solder it and repaired it correctly! Though that wasn't the cause of my mis-fire.. it was a clogged CAT..
 
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Old 05-07-2012, 10:24 PM
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I suspect many people suffer from the shoddy instal of remotes and the crazy things the system can do when malfing. LOL
 
 
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