I think they see it as a characteristic of the vehicle and because it's not a safety related issue and there is no parts failure, just a noise issue they probably aren't going to pursue it. We who post in this forum are only a small percentage of those who own these cars. Most cars probably have the noise and the owners aren't doing anything about it or have been told there is no problem found.
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Will aka Misfire
2010/2011/2012/2013 Ford Master Certified Service Advisor
2003 LX "traded in"/2010 SES "traded in"/2012 SEL Hatch "current"