Ford Mustang Forum - View Single Post - Air/fuel ratio spiking in a new Mustang, sometimes losing power.
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post #32 of (permalink) Old 05-13-2014
Sean Reilly
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When this happens (Like what the OP experienced) You MUST CHECK Ford TSB 13-6-15 (Perform Crankshaft O Ring Installation)........

Just Bumping this Thread to make it Newer, as this issue has come up to some that are unaware.......


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