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Alternator Wires ?????

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Nate87k5, Aug 3, 2000.

  1. Nate87k5

    Nate87k5 Registered Member

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    Any now where the two wires that come out of the Alternator go too? 1987k5 tbi
     
  2. 85m1009

    85m1009 1/2 ton status

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    I assume you are talking about the two field wires. The red goes to battery power and the other I think it is brown goes to the dash. The brown wire goes to an idiot light which is connected to an ingnition wire. When the engine is shut off it shuts off the field in the alternator to keep from draining the battery.
     
  3. Eagle86K5

    Eagle86K5 1/2 ton status

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    On the 87, the large red wire and the rust colored one in the plug go straight to the battery via a fusible link, the brown does go to the idiot light in the dash...see attachment.
     

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