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Exactly why I picked them to begin with...reviews are just as good at the auto parts stores. Trust me, I was just as surprised as you. Thanks for reading and replying! David

These are exactly the BOSCH plugs I used. Like said in one of my earlier posts, gap was inconsistent between the six plugs and the average was 0.050". Can confirm came packed in original packaging, with paperboard sleeve over the threads and electrode, and no dropping (at least by me). Glad you...

I'm back with an update! Motorcraft SP412 (OEM) plugs delivered on Wednesday. Wasn't able to make the swap until this morning. In the meantime, I had to drive to work and back Thursday and Friday. By Friday evening the CEL was on... So I was REALLY hoping the plug swap would clear things...

I considered this, so I'm glad you've confirmed it's a bad idea. Also, thanks for continuing to follow and comment. This is my first thread here, and really the first time I've attempted my own maintenance, so it's good to feel like there's a place to go for answers and support. David

You got it. Thanks for noticing my edit. Message received loud and clear and for about $18 I'll have the OEM Motorcraft plugs (SP412) delivered tomorrow. I'll get them in right away. Should go quicker this time as I've recently practiced. Will update here once I see how it's running with the...

Have been searching and reading through some other, older threads today and have a couple of new (maybe rookie) questions: 1) I see a lot about needing to swap out plugs and wires that are DOA? Is it really that common? Is it likely the new set of wires and plugs are bad from the factory...

Posted this in another thread. Wondering if it could be the Bosch plugs? Should I just spend the additional $25 or so and swap for a set of Motorcraft plugs? David

Thanks for the replies and the warm welcome. Nice to find a place dedicated to Explorers! So, I was REALLY having an issue when I first cranked. Shaking. Popping. Rough idling. I had switched the 4 and 6 wires on the ignition coil. Fixed that and the cranking and idling was MUCH improved...

I've searched the forums and cannot find anything that I am sure applies to my situation. Today I changed the spark plugs and wires in my 2008 Explorer XLT 4x4. It has 125,000 miles on the original Motorcraft plugs and wires. Other than a slight drop in MPG over the past eight years, I've had...