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funny tach

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by NE79, Mar 18, 2003.

  1. NE79

    NE79 1/2 ton status

    Joined:
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    Location:
    Nebraska City, NE
    Driving in the 15" of snow tonight, and among other problems, my tach started acting funny. At idle, it reads fine. Has been fine since i installed it. But when i started it up this evening and started driving, it dove to 0rmp. In neutral, it reads fine. Not sure what's going on. The wire isn't attached really well, but i would think it would read bad all the time. Any help greatly appreciated.
     
  2. 87sm465np208

    87sm465np208 1/2 ton status

    Joined:
    Aug 28, 2002
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    Location:
    illinois
    uhhh, have you tryed to "tighten" up that wireing connection any? that is the problem.

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