I have an 07 duratec SES with 217,000 miles on it. At 190k I had the Alternator rebuilt by reputable establishment in Southern Indiana. I had it rebuilt in hopes this would solve my headlights burning out so quickly, it did NOT. This past Dec 3rd I replaced them with a middle grade from Napa, tonight I already have the dim burnt out on the drivers side, not one side is more prone than the other. I replace them with good bright light, they are not the blue or purple one. This has been going on for about 3 years, any suggestions?