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Tachometer not working 200

posted by  griddle81 on  Sun Sep 19 04:49 CST 2010
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last visit: Sun Apr 3 10:22 CST 2011
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I have swapped out my big clock for a big tach and a small clock. The small clock is working just fine and before swapping out the big clock for the big tach the big clock was working just fine as well. I have been reading around on the board here and one of the mentioned things was to make sure the tach was getting 12V ground. Does anyone have a good way to test this?








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    Tachometer not working 200

    posted by  dinomartino on  Sun Sep 19 05:10 CST 2010
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    last visit: Fri Oct 24 04:43 CST 2014
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    You did hook up the red/white wire (previously sitting loose in the dash) to the back of the tachometer, right?

    John








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      Tachometer not working 200

      posted by  griddle81 on  Sun Sep 19 05:32 CST 2010
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      last visit: Sun Apr 3 10:22 CST 2011
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      Yes I did hook up the red/white wire to the back of the tach. I even took the time to hook up a test wire from the - terminal on the coil to the back of the tach and still nothing.








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        Tachometer not working 200

        posted by  dinomartino on  Sun Sep 19 07:04 CST 2010
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        last visit: Fri Oct 24 04:43 CST 2014
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        Try the tach under the hood, with a pair of alligatored jumpers. use one to ground the tach, use the other to hook it up to the - on the coil. If still nothing, tach is dead.

        John







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