Why would 4 spark plugs go bad at the same time?

Asked by sixjoy Apr 08, 2016 at 03:05 PM about the 2012 MINI Cooper Base Convertible

Question type: Maintenance & Repair

engine light came on car started shaking and chugging.  Dealer is trying to tell
me its 4 bad spark plugs. Seems to me there has to be a root cause of them
going bad all at once.

1 Answer

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