I have a 2007 Ford Edge SEL Plus that I bought used in Feb of 2011. With 48,000 miles on it, I had the same problem.....sudden loss of power & hard misfire. Took it to a local mechanic. They worked on it, said "It's running better but still missing a bit). It ran the same as when I had taken it in. (money I paid was later refunded) I drove it about 6 miles to Grapevine Ford (Texas) to have the PCM "flashed". Turns out it was the PCM that was defective and had toasted all the coils. I am now a die-hard FORD fan! I was told that my Edge was still under the 80,000 mile powertrain warranty and they replaced the PCM, coils & plugs at no charge. I paid for a fuel injector flush ($300). A day after I got the car back the "check engine" light came on again. The PCM problem had caused the catalytic converter to fail & was also replaced under warranty. I will be a lifelong customer of Ford at this point!!
