In July 2011, Prime Ford in Saco, ME. replaced the Heater Coil and Blend Door Actuator in my 2002 F150. A year and a half and 14,000 miles later I have to do it again. Is it common for a Heater Coil to go bad in that amount of time. The truck had 116,000 miles on it when I did it the first time. This $1,100.00 thing a year and a half later is not making me a real advocate of a Ford Dealer's repair service. I go to a Dealer because I prefer genuine Ford replacement parts and not after market. Has anyone taken action against a Ford Dealer's faulty repair and won?