Fixing factory mistake
Some 2010-2012 Ford Escape and 2010-2011 Mercury Mariner vehicles equipped with a 2.5L engine, built on or before 9-15-2011, may exhibit an intermittent no-crank/no-start condition with no DTCs or PATS indicator flashing. This may be caused by insufficient thread engagement of the starter motor mounting bolts.
1. Remove the starter motor.
2. Using a M10 x 1.5-6H tap, clean the threads of both upper and lower starter motor bolt holes in the engine block to remove any excessive material. When complete, clean out the block holes using shop air.
3. Install the original starter.