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Making or buying splash / water Cover for COP coil plug area 04-08 f150 4.6 ( misfire

2004 - 2008 F-150

Making or buying splash / water Cover for COP coil plug area 04-08 f150 4.6 ( misfire

 
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Old 03-24-2019, 05:16 PM
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Making or buying splash / water Cover for COP coil plug area 04-08 f150 4.6 ( misfire

Hi. Have an 08 4.6 that I have battled misfiring on cylinders 7 and 8. Lots of great threads on diagnosing and addressing misfiring. My question is: looking for ideas, feedback, or concerns on potentially making (or buying, but I didn't t find anything) a simple 'cover' that would help deflect water or debris from entering COP / sparkplug well area.

Im thinking of using some scrap epdm rubber roofing material as crude little deflection 'cover'. Anyone here done something like this?
 
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Old 03-24-2019, 06:24 PM
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Have you tried using dielectric grease at the top of the boots?
 
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Old 03-24-2019, 07:33 PM
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Originally Posted by glc View Post
Have you tried using dielectric grease at the top of the boots?
yes
 
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Old 05-03-2019, 05:15 PM
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Wd-40

Remove COP'S and spray WD-40 down spark plug well, coat boot and coil and allow an hour to dry. COP'S should be water resistant for a few months at least.

Originally Posted by normal View Post
Originally Posted by normal View Post
Hi. Have an 08 4.6 that I have battled misfiring on cylinders 7 and 8. Lots of great threads on diagnosing and addressing misfiring. My question is: looking for ideas, feedback, or concerns on potentially making (or buying, but I didn't t find anything) a simple 'cover' that would help deflect water or debris from entering COP / sparkplug well area.

Im thinking of using some scrap epdm rubber roofing material as crude little deflection 'cover'. Anyone here done something like this?
 
 


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