Question about Ford F-150

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I would like to know if there is different types of boots for the coil overs that can be replaced on my 2001 F150 4.6L .I have read and found on my truck that a misfire and ultimate pulling off of # 5 and # 6 plugs/coil overs inevitably finds moisture and brown gummy residue in the sparkplug holes. It's coming from the antifreeze and also water(if you wash the engine) can come from the "thermostat housing" and run backwards along the top of the sparkplug bank and infilitrate into the #5 thru #8 if a bad enough leak. The angle of the engine /lower in the back and I park up a incline in my driveway will inevitably send any leak or water thrown at the engine along each coil over/plu on the drivers side.. The boots used are /have only two collars /rings at the very top ..one to seal out /cap the top of the spark plu cylinder hole and the other to seal a mm. down from moisture from above. I wish to know if there is some with more rings, down the length of the rubber/neoprene boot so as to help seal further down if contamination/oil /antifreeze etc. doesn';t let the two upper rings seal it well enough. Something like a ..hmmm analogy is too easy here! I digress ..I cleaned out both #5 and #6 spark plug holes and I used a shop vac with a regular plastic drinking straw tapped to the end to draw/**** up debris and moisture from the spark plug hole and then used compressed air to blast out /disperse the moisture. I didn't want any of this debris and moisture dropping into the cylinder. I then pulled the sparkplugs and checked for moisture around the bottom/seat of the insulator and sure enough there was moisture there as well. Wiped it dry and put it all back together and cleared all /any codes by taking off the negative battery cable and stepping on the brake for a minute or two. Purrs like a kitten ..but for how long??

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I don't know of any coil boots that will give you better coverage. Most of them are practically the same thing just different brands. The only thing I can suggest would be to coat the insides of the coil boots with di-electric grease. This will help prevent moisture from getting in and causing damage.If memory serves me correct the motorcraft part# is XG-3(USA)/XG-3-A(Canada).

Posted on Mar 24, 2011

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