Unknown wire in regulator loom
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2nd Gear
Joined: Mar 2023
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Unknown wire in regulator loom
Hey guys, I'm new so apologies if I don't post correct. I've got a 1965 f250 with a 4 speed standard and the 352 in it and since I got it I've been having trouble with the charging system. The alternator won't charge the battery so I changed out the voltage regulator and that didn't help, I jumped the wires for the regulator and got the alternator to charge but no luck with the regulator hooked up. I started looking into the wiring today and found a wire had broke off im the regulator/alternator harness and the old end is nowhere to be found. One end is grounded on the core support right under the voltage regulator but the other end is just dangling near the alternator, it's a black and red/pink wire. Anyone able to help as to where the wire hooks up?
More Turbo
Joined: Sep 2019
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From: Northern Texas
Logistics Pro
Joined: May 2015
Posts: 4,469
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From: Tri Cities, TN
Hey guys, I'm new so apologies if I don't post correct. I've got a 1965 f250 with a 4 speed standard and the 352 in it and since I got it I've been having trouble with the charging system. The alternator won't charge the battery so I changed out the voltage regulator and that didn't help, I jumped the wires for the regulator and got the alternator to charge but no luck with the regulator hooked up. I started looking into the wiring today and found a wire had broke off im the regulator/alternator harness and the old end is nowhere to be found. One end is grounded on the core support right under the voltage regulator but the other end is just dangling near the alternator, it's a black and red/pink wire. Anyone able to help as to where the wire hooks up?
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2nd Gear
Joined: Mar 2023
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Thanks
Thank you for the response, you may have saved me lol, currently none of my dash lights work so I'll have to look into that ad see if I can figure out why. Anything in particular you think you should look at?
Logistics Pro
Joined: May 2015
Posts: 4,469
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From: Tri Cities, TN
The ALT. light is wired separately from the dash lights. It gets power directly from the ignition switch. There is a resistor wire paired with the light. It is there so the ALT will work even if the light burns out. This wire isn't in the wiring diagrams just in the shop manual. Check the voltage at the regulator Green/ Red wire at the "I" terminal for voltage. I can't remember the voltage, but it will be less than 12V, 7 or 8 something like that. It's in the shop manual.
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