Why does My 2002 F-150 vibrates when I put it in drive or reverse but not in nuetral or parked

Tiny
JUVENALJ
  • 2002 FORD F-150
  • 219,233 MILES

I changed the spark pligs thinkin that was the problem and the service engine like came on

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Tuesday, February 21st, 2012 AT 12:42 AM

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Tiny
BILLYMAC
  • EXPERT
  • 2,241 POSTS

You may have a bad coil or coil boots. Normally the one in the back on pass side is bad but a scan will determine which cylinder is malfuntioning

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Tuesday, February 21st, 2012 AT 12:48 AM

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