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  1. J

    Loss of power

    Thank you. I will look over them this evening. Which vacuum line did you have to replace ?
  2. J

    Loss of power

    I have a 2003 Expedition with the 5.4 and 74,000 miles and have had it since 2005. Have not had one ounce of trouble with the truck until a month ago. It began to misfire and to eliminate the guessing game I changed all of the plugs and coil packs. Problem solved...so I thought. The misfire...
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