1995 9200

Discussion in 'International Forum' started by chewy1973, Oct 1, 2016.

  1. Oct 1, 2016 #1
    chewy1973

    chewy1973 Bobtail Member

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    i have an issue with my volt guage. it will only read 12.5 to 13 when you turn on the lights its drops but nothing goes dim or out. truck starts every time with no problems what is wrong.
     
    chewy1973, Oct 1, 2016
    chewy1973, Oct 1, 2016
    #1
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  3. Oct 1, 2016 #2
    thejackal

    thejackal Road Train Member

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    Maybe a battery going bad. Load test them.
     
    thejackal, Oct 1, 2016
    thejackal, Oct 1, 2016
    #2
  4. Oct 1, 2016 #3
    thejackal

    thejackal Road Train Member

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    Then do a voltage test on the alternator. See what the output is.
     
    thejackal, Oct 1, 2016
    thejackal, Oct 1, 2016
    #3
  5. Oct 1, 2016 #4
    thejackal

    thejackal Road Train Member

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    It also might be the voltage Guage in the truck is going bad.
     
    thejackal, Oct 1, 2016
    thejackal, Oct 1, 2016
    #4
  7. Oct 1, 2016 #5
    heavyhaulerss

    heavyhaulerss Road Train Member

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    could be a ground wire, check where the wire is crimped at the alt. a cheap h.f. volt meter can be used to test volts everywhere.
     
    heavyhaulerss, Oct 1, 2016
    heavyhaulerss, Oct 1, 2016
    #5
  8. Oct 1, 2016 #6
    062

    062 Road Train Member

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    Could be bad gauge or resistance to gauge. Like heavyhauler said check voltage at the batteries and alternator. @Heavyd can probably tell you the spec. I don't like more than .5 volt between the two.
     
    062, Oct 1, 2016
    062, Oct 1, 2016
    #6
  9. Oct 1, 2016 #7
    AModelCat

    AModelCat Road Train Member

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    Seen that issue on off highway equipment a few times. In my experience it was typically a loose ground cable.
     
    AModelCat, Oct 1, 2016
    AModelCat, Oct 1, 2016
    #7
  10. Oct 2, 2016 #8
    Heavyd

    Heavyd Road Train Member

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    Check all your cab powers and grounds. Something is dirty/loose somewhere.
     
    Heavyd, Oct 2, 2016
    Heavyd, Oct 2, 2016
    #8
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