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Alternator wiring diagrams obviously something else is wrong?

Tiny
GHOSTSHIP
  • MEMBER
  • 1984 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 68,000 MILES
Ok, here is my problem. I have a 1984 Dodge Ram D150 (no that's not the problem). The battery died a few days, so I bought a new one, it ran for about a day then died. I thought it was the alternator, so I replaced that along with the voltage regulator. I restarted the car and when the truck is running my voltmeter only shows about 12.35 Volts from the battery, so obviously something else is wrong, I just don't know what. There is continuity between the alternator and the voltage regulator, and also between the alternator and the battery. My forte is British Motorcycles, so I am out of ideas. Please help!
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Tuesday, January 11th, 2011 AT 7:11 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It sounds like you have a connection issue with one of the wires or the voltage regulator is not grounded properly. Here is a guide to help you test the continuity and the ground and power circuits and the alternator wiring diagrams below.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below). Please let us know what happens.

Cheers
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Monday, June 8th, 2020 AT 5:31 PM
Tiny
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  • MEMBER
  • 2 POSTS
Thanks for the guide I found the regulator has loose and not bolted down tight, once I fixed that the system started charging. Thanks I love this site.
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Monday, June 8th, 2020 AT 5:31 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Nice work, we are here to help, please use 2CarPros anytime.

Cheers
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Monday, June 8th, 2020 AT 5:31 PM

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