Dead tach

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  • brutus87
    R3V OG
    • Feb 2010
    • 6280

    #1

    Dead tach

    So I installed cluster rings and painted my needles red, installed the cluster. Now my tach is dead, tapped it countless times, no bueno. Now my temp needle goes crazy/dead. Cluster was perfect before. What could possibly caused this? Thanks in advance, I really appreciate it.
    sigpic
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    the tach and temperature gauge acting up or dead after the cluster has been out of the car for a while suggests that the batteries in the SI board were close to failure and have failed with the loss of unswitched power.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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    • brutus87
      R3V OG
      • Feb 2010
      • 6280

      #3
      Im going to try to swap out the si board, thanks for the help!
      sigpic

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      • bernzpeed
        No R3VLimiter
        • Feb 2009
        • 3917

        #4
        this was helpful as I did the same thing and now it's not working.
        Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
        ---------------------------------
        89 E30 S52
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        • brutus87
          R3V OG
          • Feb 2010
          • 6280

          #5
          Swapped out the si board with a known good one, turned on car tach worked again! BUT I turned car off, and started to put all the srews on when I saw a plume of smoke, and now the tach wont work again FML.
          sigpic

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          • brutus87
            R3V OG
            • Feb 2010
            • 6280

            #6
            bump!
            sigpic

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            • brutus87
              R3V OG
              • Feb 2010
              • 6280

              #7
              anyone?
              sigpic

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              • lennon
                E30 Fanatic
                • Jun 2008
                • 1416

                #8
                take it back out and find out what got smoked and why...

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                • brutus87
                  R3V OG
                  • Feb 2010
                  • 6280

                  #9
                  thanks lennon, some diode looked like it melted into a chocolate lump. Replaced si board, good as new! My theories are the si board was going bad or when I was putting it all together, one of the screws may have been too long and shorted the board.
                  sigpic

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                  • cbouchez
                    R3VLimited
                    • May 2007
                    • 2789

                    #10
                    My tach is dead as well as the fuel gauge temp, I'll be doing the same see how how it goes.
                    Follow my IG @bouchezphotography

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