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Had a 2012 F-150 come in last week with a misfire that stumped me for 2 days
Turned out to be a corroded ground strap on the passenger side cylinder head, not even the coils or plugs. Anyone else had phantom issues traced back to bad grounds that looked fine at first glance?
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claire_campbell4h ago
Early 2012s still had the 2-bolt ground strap design. Later versions got the fix.
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