Hacked wiring

Discussion in 'Audio & Electronics' started by laidbackbigun, Jan 19, 2018.

  1. laidbackbigun

    laidbackbigun TYF Newbie

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    Okay so on my new to me 95 tahoe with 5.7 the previous owner cut down the plug that goes into the back of the alternator. I believe the only wire he saved was to the gauge because it works. Overcharged but works. What would the other 2 wire goes to.
     
  2. iamdub

    iamdub Content may not be suitable for all audiences

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    Probably the wires from the PCM that controls the alternator's output regulator. You should fix that cuz batteries don't like to be overcharged.
     
  3. laidbackbigun

    laidbackbigun TYF Newbie

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    Well I can get a new pigtail but that doesn't help if I have no idea where the other wires go. All the wiring diagrams I have found are for older 1 wire alts on prior 5.7l
     
  4. iamdub

    iamdub Content may not be suitable for all audiences

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    So, you have a one-wire alternator now?

    I'd get the correct alternator for the truck then go cut a pigtail from a salvage yard. Match up the wires and solder and heat-shrink them together to make it like stock again.
     
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  5. laidbackbigun

    laidbackbigun TYF Newbie

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    No I have a 3 wire alt and a 3 wire pigtail. Previous owner clipped 2 of the wires about 1/4 inch from pigtail and somewhere back along the harness. I don't know why.
     
  6. iamdub

    iamdub Content may not be suitable for all audiences

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    Lame.
     
  7. Kenny D

    Kenny D Full Access Member

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    Buy a Chilton's manual for your vehicle, they have extensive wiring diagrams.
     
  8. Kenny D

    Kenny D Full Access Member

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    Or you can peel back the harness and match the wire color, I would bet that the dipwad probably didn't go too deep into the harness to clip them
     
  9. Kenny D

    Kenny D Full Access Member

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    Don't know if you have done anything yet but looking at the wiring diagram it shows a blk/red that goes to the positive terminal on the battery, then there is a brown wire that goes to the gauge, the white wire is for diesel only. No other wires are used. The voltage regulator should be built into the altenator. The diagram I am looking at is from section 12-39 in the Haynes manual for 1988- 1999 full size and suv. ISBN 1 56392 426 9 799-1158
     
  10. laidbackbigun

    laidbackbigun TYF Newbie

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    I saw that to. So it has 2 wires running to battery?
     

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