Fouled out plugs again!

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  • Jak
    Member
    • Aug 2006
    • 62
    #1

    Fouled out plugs again!

    This is the second time this happened in <8k miles while driving my 325is. It seems to happen after a couple WOT sessions. Any suggestions as to what would be causing it or how to stop/reduce it? All of the other plugs looked ok, at least they were dry.

    Tags: None
    • EtaSport
      R3VLimited
      • Oct 2003
      • 2853
      #2
      holy shit... yea, um thats not really a good thing. Are those 2 plugs side by side? Perform a compression test and report back.
      Old and improved:

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        • backtrail69
          R3V Elite
          • Jul 2005
          • 4471
          #3
          Sounds like DEAD rings. My turbo car that smokes like a chimney doesn't even do that...
          :: PNW Crew ::
          '87 325 4dr, '74 2002

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            • Jak
              Member
              • Aug 2006
              • 62
              #4
              Those pics are of the same plug. I have a leak down tester but no comp. Ill have to pick one up this week. The car doesn't use any oil or show any smoke. It has 165k miles.

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                • jlevie
                  R3V OG
                  • Nov 2006
                  • 13530
                  #5
                  If you only see that on one cylinder I'd suspect low compression or a bad ignition wire on that cylinder.
                  The car makes it possible, but the driver makes it happen.
                  Jim Levie, Huntsville, AL

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                    • Jak
                      Member
                      • Aug 2006
                      • 62
                      #6
                      Yes its just on one cylinder. I was leaning/hoping it is a plug wire. I remember having a miss some time ago and checking that the wires were secure. After I checked them, the miss went away for a couple months until I discovered the first fouled plug. I'm still going to get a comp tester hopefully on Wednesday and see where I'm at on the rings before I buy any more parts.

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