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12 volt cooler=ecu, starter failure?

Discussion in 'Volvo Forum' started by 20340, Mar 5, 2019.

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  1. Mar 5, 2019 #1
    20340

    20340 Bobtail Member

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    Can a 12-volt cooler (plugged into a cigarette plug outlet) cause an ecu or starter failure?
     
    20340, Mar 5, 2019
    20340, Mar 5, 2019
    #1
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  3. Mar 5, 2019 #2
    truckdriver31

    truckdriver31 Road Train Member

    6,986
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    i wouldnt thk so
     
    truckdriver31, Mar 5, 2019
    truckdriver31, Mar 5, 2019
    #2
  4. Mar 5, 2019 #3
    Old Man

    Old Man Road Train Member

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    Oklahoma City, OK
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    No,
     
    Old Man, Mar 5, 2019
    Old Man, Mar 5, 2019
    #3
  5. Mar 5, 2019 #4
    20340

    20340 Bobtail Member

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    Mar 5, 2019
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    A Volvo service writer insists it was the cooler and not the battery terminals. First for the ECU, then for the starter. I'm in the Twilight Zone here!
     
    20340, Mar 5, 2019
    20340, Mar 5, 2019
    #4
  7. Mar 5, 2019 #5
    uncleal13

    uncleal13 Road Train Member

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    The low voltage disconnect should have kicked in.
     
    uncleal13, Mar 5, 2019
    uncleal13, Mar 5, 2019
    #5
    Dave_in_AZ Thanks this.
  8. Mar 5, 2019 #6
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Which Volvo are you at?
     
    Dave_in_AZ, Mar 5, 2019
    Dave_in_AZ, Mar 5, 2019
    #6
  9. Mar 5, 2019 #7
    20340

    20340 Bobtail Member

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    Mar 5, 2019
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    New Castle DE.
     
    20340, Mar 5, 2019
    20340, Mar 5, 2019
    #7
    Dave_in_AZ Thanks this.
  10. Mar 5, 2019 #8
    x1Heavy

    x1Heavy Road Train Member

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    If you leave the cooler going on batteries until they drain to less than a particular voltage available, it will brick everything in that truck. No start. Don't be doing that.
     
    x1Heavy, Mar 5, 2019
    x1Heavy, Mar 5, 2019
    #8
  11. Mar 5, 2019 #9
    20340

    20340 Bobtail Member

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    Mar 5, 2019
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    That's not it. I just got unloaded, had 13+ volts. No start. ECU failed as I drove down the road. He's telling my boss the cooler caused this stuff with full batteries--believe it or not.
     
    20340, Mar 5, 2019
    20340, Mar 5, 2019
    #9
  12. Mar 5, 2019 #10
    20340

    20340 Bobtail Member

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    Mar 5, 2019
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    After they "fixed" the ECU, issue started recurring. I found loose battery terminals. They just stole my cooler and never even checked the terminals!
     
    20340, Mar 5, 2019
    20340, Mar 5, 2019
    #10
    25(2)+2 and Dave_in_AZ Thank this.
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