Question about 1986 Dodge W150

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1982 Dodge W150 truck (6 cyl.)wiring problem

On my 1982 Dodge W150 truck (6 cyl.)there is mounted on the driver's side wheel well behind the battery a 30 amp fuse. One side of the fuse is wired to the positive terminal of the battery.
The other side of the fuse goes to what??. That wire is currently broken and I don't know the location where it terminates. The truck is not currently charging although bot the alternator and regulator are good. If the positive cable is removed from the battery while the engine is running it dies. Voltage across the battery terminals while running is approx. 12.6

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It's a fuse link that is designed to blow if there is a short in the charging system. The cable runs from the battery to the alternator output and keeps the battery charged. With the engine running the output sends voltage back to the battery.

Posted on Oct 09, 2012

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I do not know about that,but make sure the large wire on the alternator is going to the positive cable on the battery.

Posted on Jun 01, 2010

  • morrow_ja Jun 01, 2010

    Since I do not have a schematic I am unable to check the continuity for the wire. I thought possibly the unknown. wire on the fuse went to the alternator but I cannot find a location from where it is disconnected. It is not long enough to go directly to the alternator. The wires are bundled and go to various connectors that I cannot see what goes where. Thanks for your effort and help!

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jun 01, 2010

    Make sure the main wire from the alternator,the large one goes directly to the battery positive and that may be all that it it.



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