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Voltage ishues

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Richter, Sep 22, 2014.

  1. Sep 22, 2014 #1
    Richter

    Richter Road Train Member

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    Feb 13, 2012
    Philadelphia Pa
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    So, Im having some wierd ishues.

    While truck is off, all 12 volt outlets real 12.5ish. (normal ish) While truck is on, they read 9.4ish. Batts read 14.1 and ecm reads 14.1. why are all the accessory reading much lower?

    Fringe in truck wont turn on while truck is off or on.


    2006 fl Columbia
     
    Richter, Sep 22, 2014
    Richter, Sep 22, 2014
    #1
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  3. Sep 22, 2014 #2
    Exiled

    Exiled Light Load Member

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    Apr 20, 2013
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    Same issue was solved by adding distilled water to the batteries on my Columbia
     
    Exiled, Sep 22, 2014
    Exiled, Sep 22, 2014
    #2
  4. Sep 22, 2014 #3
    Skate-Board

    Skate-Board Road Train Member

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    I don't know where it is but there is a voltage regulator for all your accessories. I'm guessing that is bad.
     
    Skate-Board, Sep 22, 2014
    Skate-Board, Sep 22, 2014
    #3
    Richter Thanks this.
  5. Sep 22, 2014 #4
    Snailexpress

    Snailexpress Road Train Member

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    Rocky
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    Bad ground cable between cab and frame- battery. AMEN
     
    Snailexpress, Sep 22, 2014
    Snailexpress, Sep 22, 2014
    #4
  7. Sep 22, 2014 #5
    Ezrider_48501

    Ezrider_48501 Road Train Member

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    bismarck, nd
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    whats a ishues? is that when you have allergy's? (just kidding) id start by cleaning all your battery connections and go from there. sounds like you have a bad connection somwhere after the battery's go to the fuse box's
    [h=2][/h]
     
    Ezrider_48501, Sep 22, 2014
    Ezrider_48501, Sep 22, 2014
    #5
  8. Sep 22, 2014 #6
    Richter

    Richter Road Train Member

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    Philadelphia Pa
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    I dont know where it is either, but i think your right. When replacing the batts the voltage reg wasn't hooked up tot he batts and all the accessories rapidly turned on and off untill it was fixed...that may have fried it.
     
    Richter, Sep 22, 2014
    Richter, Sep 22, 2014
    #6
  9. Sep 22, 2014 #7
    Richter

    Richter Road Train Member

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    Feb 13, 2012
    Philadelphia Pa
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    Batts are brand new Optima Yellow top AGM....they are maint free and dont need water.
     
    Richter, Sep 22, 2014
    Richter, Sep 22, 2014
    #7
  10. Sep 22, 2014 #8
    Richter

    Richter Road Train Member

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    Feb 13, 2012
    Philadelphia Pa
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    i would have thought that, but i cant find one...and it only is problamatic while truck is on.
     
    Richter, Sep 22, 2014
    Richter, Sep 22, 2014
    #8
  11. Sep 23, 2014 #9
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
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    Jun 14, 2009
    romulus,mi
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    sounds like bad low voltage shut down module.6 x 4 module located behind garbage bin,lower center console.unscrew both white cables with red tips and bolt them together to bypass.good luck.
     
    QUALITYTRUCK, Sep 23, 2014
    QUALITYTRUCK, Sep 23, 2014
    #9
  12. Sep 23, 2014 #10
    Richter

    Richter Road Train Member

    4,090
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    Feb 13, 2012
    Philadelphia Pa
    0
    Thanks, I was gonna take it t freghtshaker this morning, but ill try bypassing that first...maybe all i need is a part and not expensive labor
     
    Richter, Sep 23, 2014
    Richter, Sep 23, 2014
    #10
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