I picked up my 2008 Edge this morning from the dealer. It was in for a week. They replaced all 6 coil packs, 6 spark plugs and the pcm, plus the three gaskets and another key. They referenced the TSB dated 11-8-2. My cost was $0.00.
I had 79,545 miles on it when I scanned the codes PO300, PO301, PO302, PO351, PO352, PO354 set the check engine light 2 weeks ago. I brought it to the dealer to diagnose it. They called me yesterday and told me it was all done and there was no charge.
The only complaint I have is the lack off communication. When calling the dealer It is all automated and you get transferred to voice mails. I had to call twice during the week to check on the status. The first time I was connected to the advisor and the second time I left a voice mail which he returned the next day to tell me it was ready. When I picked it up today, the LOT GUY helped me. Told me the cashier had the keys. I never spoke to an advisor. I did check the car. I can see four new coil packs and I had to replace the wiring harness back into the valve cover.
I was anticipating a fight. Other than the complaints I had, they did know of the problem and told me it is also happens to the Escape.
They said the spark plugs create a resistance that over loads the coil packs, in turn, damages the PCM driver. Quite the opposite from the earlier posts.