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Discussion in 'The Garage' started by PhoenixZorn, Jun 5, 2006.

  1. PhoenixZorn

    PhoenixZorn 1/2 ton status

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    Seems like not a lot of people frequent the tech forums, so I'm linking my post for you guys... in short, please figure out why my #7 plug keeps fouling out...

    http://coloradok5.com/forums/showthread.php?t=175811


    Update on this... Today I replaced the #7 plug and wire. No change, still not firing... I need to just take it to the shop and have one of the more experienced guys diagnose it... but it's more fun to try things out myself...
     
  2. 1979jimmy350

    1979jimmy350 1/2 ton status

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    have you done a compression test on that cylinder?, what does the plug look like from that cylinder?
     
  3. PhoenixZorn

    PhoenixZorn 1/2 ton status

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    actually, when I pulled it last night, it looked dry... like a piece of shiny plastic that has been sitting in the sun for a few weeks... lost it's luster... almost looked like calification on the electrode....
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    Is it not firing, (IE no spark at the plug when tested) or as mentioned, do you have compression/valve issues?
     
  5. 1979jimmy350

    1979jimmy350 1/2 ton status

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    i would check the compression on that cylinder, if it is a good reading take off the valve cover and run the engine to see if the valves are opening all the way
     

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