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no voltage

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Marshall, Aug 24, 2003.

  1. Marshall

    Marshall 1/2 ton status

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    i was driving around last night and when i turned my lights on and then all the sudden when i would come to a stop my voltage would drop really low and the truck would end up stalling, the voltage seems to get lower when even the blinkers are on also, i am not sure whats goin on but how could i fix this problem, anyone?

    Thanks, Marshall
     
  2. Confedneck

    Confedneck 3/4 ton status

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    check the voltage to the battery from the alternator...how does it crank? slow?
     
  3. Marshall

    Marshall 1/2 ton status

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    um i dunno it takes like 3-4 seconds to start how do i check from the alternator to the battery?
     
  4. Confedneck

    Confedneck 3/4 ton status

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    get a voltmeter, start the truck and check how many volts the battery has at idle...before you do that check how many volts the battery has when the truck is off, then check how many volts at like 2200rpms...should be about 13-14 or so when charging..
     
  5. Marshall

    Marshall 1/2 ton status

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    ya i checked standalone batt. power is 12.77 volts and from alternator to battery it is 14.35 volts. so i guess i am fine? let me know.

    Thanks, Marshall
     
  6. SF87K5

    SF87K5 1/2 ton status

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    check to see if you have a lose wire off your starter. Mine did the samething and I had a wire come off my starter.
     

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