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# 1 cyl missing-wet plug

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  • # 1 cyl missing-wet plug

    '04 90 trlc misses - wet plug- changed plugs and switch coil same results- wet plug. Unit appears to have spark as I ran engine with spark plug out and grounded on the head.

  • #2
    wet with fuel ? check fuel pump

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    • #3
      Check compression and then check spark with a spark tester on all cylinders.
      If all OK the look at the fuel/carbs. too much fuel or not enough will not let the cylinder fire the mix properly.
      #1 cylinder will not be affected by a hole in the pump ,that is usually #3

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