Plugs are tough back there since they are way down in the hole but it's doable,my biggest fear was cross threaded them but I sprayed some carb clean in the hole (had light rust on the original plug threads) and started them with a short piece of 3/8" rubber hose. My factory plugs were fine tip Motorcraft platinum's that looked nearly identical to my Bosch replacements. Here is the video I referenced.Cool, just inherited in-laws' 05 Sable. I could see a plug wire arcing in the back, figured it's never had plugs since they bought it in '06....was not looking forward to pulling intake for wires and plugs in the rear. Glimmer of hope in your post!
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