Nov 19, 2011 · Failure Date: 01/19/2012. The 2. 3 liter 4 cylinder l3t engine that is in my wife's 2007 Mazda Cx-7 has a bad variable valve timing actuator which was verified today by dual Mazda of jacksonville florida. A warranty extension was issued by Mazda around the 14th of January 2012 following the initial TSB (technical service bulletin) date 23
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