Problem with my 99 GT40 efi

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  • Averysconcrete
    • Aug 2018
    • 4

    • CA

    • 95 Ski Nautique

    Problem with my 99 GT40 efi

    Hey guys, just joined this forum and am a first time Nautique owner. Im having a problem with my boat and it seems to only happen in the middle of the day when its hottest out. She will run fine all morning, we'll take a lunch break, and take it back out and it will die and,won't start till latwr in day when its cooler again. The engine temp is normal, the fuel filter has been changed, the fuel pressure is normal, the spark plugs and distributer are good. Any Ideas? I feel like it thinks its over heating so its shutting down bit like I said its temp is normal. I have a 95 ski nautique with a 99 gt40 efi engine. It has 360 original hours.
  • lucky7t
    1,000 Post Club Member
    • Mar 2011
    • 1306

    • Oklahoma

    • 2015 SANTE

    #2
    Ignition module . Located on distributor .

    Don’t buy a cheap one . Get Napa gold if you can find it . Easy to install


    Sent from my iPad using Tapatalk
    Current Correct Craft Boat
    [URL="http://tapatalk.imageshack.com/v2/15/02/05/1e6128564805861d2625d7b7f8efd2f1.jpg"]2015 SANTE 210[/URL]

    Correct Craft Boats Owned
    [URL="http://www.planetnautique.com/vb5/attachment.php?attachmentid=17771&d=1340117700"]2012 SANTE 210 (Boatmate Trailer)[/URL]
    [URL="http://www.planetnautique.com/vb5/attachment.php?attachmentid=14107&d=1313460568"]2003 SANTE 210 (Dorsey Trailer)[/URL]
    [URL="http://www.planetnautique.com/vb3/attachment.php?attachmentid=14108&d=1313461675"]2007 SANTE 210 (Magnum Trailer)[/URL]

    Comment

    • Averysconcrete
      • Aug 2018
      • 4

      • CA

      • 95 Ski Nautique

      #3
      Lucky7t thank you. I'll try this today. You say it's right on top of the distributor?

      Comment

      • Averysconcrete
        • Aug 2018
        • 4

        • CA

        • 95 Ski Nautique

        #4
        I'm not in front of it right now but does the wire going from the ignition coil to the distributor connect to it?

        Comment

        • Averysconcrete
          • Aug 2018
          • 4

          • CA

          • 95 Ski Nautique

          #5
          Click image for larger version

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          Comment

          • Averysconcrete
            • Aug 2018
            • 4

            • CA

            • 95 Ski Nautique

            #6
            Is this where ignition module is located?

            Comment

            • whitecaps
              • May 2015
              • 125

              • Eads, Tennessee

              • 2017 GS22 1998 Ski Nautique 196

              #7
              Is it getting spark? If yes, is it getting fuel? If no spark check ignition, kill switch, neutral position switch, etc. Don't make too much of the time of day it happens. Also there is a little known fuel check valve/filter at the fuel tank that can cause lots of trouble since most folks don't know its there.

              Comment

              • beamons
                Senior Member of PLANETNAUTIQUE
                • Jun 2017
                • 376

                • Utah

                • 2005 Ski Nautique Limited Looking for a 230 or g23 prev. 1998 Ski Nautique, 2004 Nautique SV211

                #8
                Did you ever sort this out?


                Sent from my iPhone using PLT Nautique

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