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alternator fail??

Discussion in 'Technical Chat' started by rawdog, Nov 22, 2009.

  1. Nov 22, 2009 at 8:39 PM
    #1
    rawdog

    rawdog [OP] Well-Known Member

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    Steve
    Kelowna B.C.
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    2016 TRD Sport Upgrade PKG DCSB
    Hey guys

    my new alternator just went.. fortunately its covered under warranty, but the problem is it went on sat morning. mech aint open until monday, iwork until 3.. question is.

    how long do you think my battery will last
    i tested it and its at 11.75 volts..
    waht is the smallest voltage my truck will take until it starts to die.

    i have an optima red top.


    btw im only assuming its my alt..
    bat light on as well as brake light.
    and with the voltage on the terminals so low with truck running..
     
  2. Nov 22, 2009 at 8:57 PM
    #2
    dexterdog

    dexterdog My pee parts itch

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    couple of miles maybe with all accessories shut off.
     
  3. Nov 22, 2009 at 9:01 PM
    #3
    ak47

    ak47 v.hey its my Avatar avatar.v

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    Anthony
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    it depends how far do you need to drive? i wouldnt risk more then 10 miles without one of those power pak things. lol. no one wants to be stranded! ;)

    unplug the negative terminal if the truck dies think alternator.
     
  4. Nov 22, 2009 at 9:09 PM
    #4
    sachou

    sachou Well-Known Member

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    Richland, Washington
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    Sounds like your battery is already slightly drained...shouldn't they be at around 12.6 volts?

    This guy: http://www.instructables.com/id/SDG93IZFT7PLXT3/ actually disconnected his alternator completely to reduce the parasitic drag to increase mileage.

    So it seems doable.

    I'd definitely charge the battery overnight if you had a charger.

    Remember, it has to be a gel-cell charger, because they're lame and have to charge slower.
     
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