I am taking my new to me 2007 EL to get a tune up Monday. The cheapest place I have found is $350 + $75 per plug. I also have a coil pack going bad and its $75 for the part plus labor. I've only had the Expy for a month and its got 107k miles. Would you pay an extra $150 to have the fuel system cleaned while its there? I have maintenance records showing all the oil changes since the car was originally purchased but no other maintenance. The other Ford dealership in the area wanted $650 +$75 per plug and then wanted to clean the Mass Air flow Censor and a bunch of other stuff outside the normal tune up. Thanks for you help!