I'm happy to report back that I bought the part locally for $40 plus another $1 for the di-electric grease and knocked it out last night. Truck now runs smooth as silk again. What a feeling to have it fixed - and know that I saved around $150 vs. Getting it done at a repair shop, and who knows how much more vs. Taking it to the dealer.
I did go ahead and take off the plastic air intake cover (3 bolts - the plastic piece that says "4.6l Triton" on it.). Also moved the bracket that holds the power steering fluid reservoir. Just made it easier to get my hands in there. Couldn't be more pleased with how it went, and I will not hesitate to take the rest of them on some time soon.
Didn't want to wait for an eBay order to ship, as this chugging/missing had been going on already for a couple of weeks. But, I am going to order a set ($80 (or less!) On eBay) and either have them on hand for the next time one goes out, or just dive in and do 'em all + the plugs sometime soon. My local Ford dlrshp parts dept. Wanted $97! For one coil. (Bought my single at O'Reilly's for $39.99)
Thanks again, Billymac, for the encouragement.
Saturday, December 1st, 2018 AT 11:53 AM