BLACK SOOT

  • Tiny
  • dano2448
  • 1997 Mercury Marquis
  • V8
  • 2WD
  • automatic
  • 118,525 miles

Have a 1997 grand marquis. What does it mean when you have what looks to be black soot around fill neck hole for fuel tank?

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Sunday, November 14th, 2010 AT 12:21 PM

2 Replies

  • Tiny
  • Wrenchtech
  • Expert
  • 20,063 posts

It probably means someone tried to put something into your fuel tank. There is not reason for anything to be there.

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Sunday, November 14th, 2010 AT 1:08 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 20,063 posts

Now, if your referring to the outside of the car and it really is soot, it could be coming out of the exhaust and getting on there due to an over rich fuel mixture.

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Sunday, November 14th, 2010 AT 1:10 PM

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