1997 Deville Alternator Wire problem
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 1997 Deville Alternator Wire problem in Past Cadillac Vehicle Discussion; Hello everyone, first post for me. Until now I've found everything I need just by lurking, came across a problem ...
  1. #1
    CaliBigRig is offline Cadillac Owners Member
    Automobile(s): 1997 Cadillac Deville
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    Question 1997 Deville Alternator Wire problem

    Hello everyone, first post for me. Until now I've found everything I need just by lurking, came across a problem that I need to register and post for today. Not a bad thing for sure.

    Alright, so I bought this '97 Deville from a local auction a few weeks ago. Drove it home just fine (20 miles); then my wife took it to the store, and that's where the problems started. She told me the dash said "Service Charging System" and then the car shut down. So I took the alternator and battery out and had them tested at 3 different places, pass-pass-pass.

    Confused I went to put them back in, upon reconnecting the alternator I noticed a bare wire and decided to investigate. What I found was all kinds of messed up. The wire was twisted and electrical taped together in a few places, and right at the connector to the alternator there was a butt-connector holding one of the wires together. The reason I didn't see it before was because they replaced the plastic sheathing around the wires, and taped that.

    Anyhow, my problem: I only see 2 wires branching off the main harness, and when I look up a replacement connector, they have 3 wires. Did someone "fix" this improperly? And how hard will it be to fix? ( I can rewire it but I wanted to ask here before I started )

    Thanks a lot for the resources, and thanks in advance for any answers.

    EDIT: All of the wiring diagrams I can find do not specify the year and/or model so I am unsure of what I'm finding.

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  3. #2
    CaliBigRig is offline Cadillac Owners Member
    Automobile(s): 1997 Cadillac Deville
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    Re: 1997 Deville Alternator Wire problem

    So no one knows anything about the wires that I'm supposed to plug in to the alternator?

  4. #3
    maeng9981's Avatar
    maeng9981 is offline Cadillac Owners Connoisseur
    Automobile(s): 14 SRX, 12 Sierra, 00 SLS, 99 Deville 50-year Anniversary
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    Re: 1997 Deville Alternator Wire problem

    I believe the connector has four slots (one big, three small) and there are only two that will be used.

    CaliBigRig likes this.

  5. #4
    CaliBigRig is offline Cadillac Owners Member
    Automobile(s): 1997 Cadillac Deville
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    Re: 1997 Deville Alternator Wire problem

    Thank you Maeng9811, I appreciate that.

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