I have 2004 Ford F-150 Heritage V-6 4.2 114,00 origional miles and I am origional owner. It has ran like a sewing machine until recently. Only major thing I have done to the engine is change the plug wires (2) years ago. I parked the truck last weekend and cranked it the next day and it had a ruff idle and the engine light was on. OK...I had never changed plugs so I changed plugs and used Motorcraft replacement. This did not cure the problem. I changed the coil and used an aftermarket brand only because Motorcraft brand was not available at my parts house on the weekend. Still did the same thing...I was a little upset. I took it to the dealer and explained what I had done. They tested and said I had a bad coil. I told them to put another coil on and see if that cured the problem and, if it did not, to not charge me and they agreed. It did not cure the problem. Now they tell me my computer (processor) is bad and they will have to order the part and it will cost $1,300 to replace. Everything I see on in my research is around $500 for unit. Am I being a little paranoid or is that the right price range? Sorry for the long post..venting al little as well!