Misfire

2001 FORD WINDSTAR
218,070 MILES
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BIG FERN
  • MEMBER
  • 2 POSTS
It's making a burn mark in the middle of my number 2 spark plug
Apr 28, 2013 at 2:56 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
check to seeif it's kind of grayish it may be the plug wire is leaking causing that.
Apr 28, 2013 at 3:14 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
also check the fuel pressure low fp will cause misfires
Apr 28, 2013 at 3:14 PM
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,309 POSTS
I assume you mean along the outside of the spark plug. Replace the spark plug and the wire. Once arcing takes place it leaves a carbon track behind inside the boot. That is a conductor and it will continue to arc there until both parts are replaced.
Apr 28, 2013 at 3:18 PM
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