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lights dimming truck dies

Discussion in 'Truck & Equipment Repair' started by cherrybomb, Nov 12, 2007.

  1. cherrybomb

    cherrybomb Junior Member
    Messages: 2

    I am new to plowing . purchased a 87 blazer with an older arctoc plow. all is good but after i lift 2-3 times the truck dies . is this a bad pump , not enough batt power , somethig else ? i checked the alt and it is charging at 14.5 volts but something is not right ...help
  2. Mick

    Mick PlowSite.com Veteran
    from Maine
    Messages: 5,546

    Your plow is pulling too much power for your battery. Your alternator is trying to restore it, but your battery is just old and tired. While you're at it, have your alternator tested under load.
  3. Clapper&Company

    Clapper&Company PlowSite Veteran
    from NE OHIO
    Messages: 4,413

    Mick's on top of this one
  4. cherrybomb

    cherrybomb Junior Member
    Messages: 2

    so you think my pump is good ? AND are most of you guys running dual batteries?

    HAZMAT Junior Member
    Messages: 19

    How is the pump responding for those three lifts? Is the first one strong like it should be then it slowly decreases its strength? I would start with the battery if you claim your alternator is operating correctly, If you can run a test with a VAT machine (Voltage, Amperage Tester) and do a load test on your system.

    - Kevin
  6. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Use the search function on the gray line above. Search "Charging, Power, Batteries"
    It's beat to death here every year.Note how Dielectric grease is used to protect connections and junction plugs.