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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Charging system harness

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Old Aug 20, 2018 | 06:56 AM
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Charging system harness

Hi. I just picked up a 1970 F100 with a 302. Gauges, not idiot lights. It is not giving a charge. The alternator tested as working correctly, but it really looks as though there are wires cut off or missing from the alternator to voltage regulator harness, so I believe that's where the problem is. I am having trouble finding a new harness. I read somewhere that the 1970 mustang uses the same harness. Could someone please tell me if that is correct?
 
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Old Aug 20, 2018 | 07:45 AM
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I have a good used one from a 71 f-100 for sale.
 
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Old Aug 20, 2018 | 10:27 AM
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Originally Posted by Ghill70
Hi. I just picked up a 1970 F100 with a 302. Gauges, not idiot lights...
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
 
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Old Aug 20, 2018 | 12:45 PM
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Originally Posted by mrpotatohead
I have a good used one from a 71 f-100 for sale.
Ok. How much do you want for the harness, and how do we arrange payment and shipping?
 
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Old Aug 20, 2018 | 12:46 PM
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Originally Posted by Thipdar
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
Thank you!
 
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Old Aug 20, 2018 | 01:32 PM
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Originally Posted by Ghill70
Ok. How much do you want for the harness, and how do we arrange payment and shipping?
I guess the better question would be is it listed here in the marketplace?
 
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Old Aug 20, 2018 | 02:29 PM
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I'd take 50.00 for it plus the shipping charges. I will post a picture of it if you are interested in it. Just let me know.
Thanks.
 
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Old Aug 20, 2018 | 03:48 PM
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Originally Posted by mrpotatohead
I'd take 50.00 for it plus the shipping charges. I will post a picture of it if you are interested in it. Just let me know.
Thanks.
Please post the picture.
 
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Old Aug 20, 2018 | 08:36 PM
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It's in absolutely perfect condition. 50.00 plus shipping, I do paypal. I can get more if anyone else is interested. Thanks.
 
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Old Aug 20, 2018 | 09:04 PM
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I'll take it. How do we do this? Do you have a website or online store?
 
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Old Aug 20, 2018 | 09:28 PM
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I see you don't have the messaging feature activated. Can I send you an e-mail?
 
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Old Aug 20, 2018 | 09:33 PM
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Originally Posted by mrpotatohead
I see you don't have the messaging feature activated. Can I send you an e-mail?
**********
 
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Old Aug 20, 2018 | 09:34 PM
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E-mail sent.
 
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Old Aug 20, 2018 | 09:47 PM
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Originally Posted by Ghill70
************@yahoo.com
Originally Posted by mrpotatohead
E-mail sent.
not seeing anything yet.
 
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Old Aug 25, 2018 | 01:27 AM
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Originally Posted by Thipdar
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
I got the charging system going again, big thanks to mrpotatohead. Would the f350 diagram apply to turn signals and running lights as well, or would the f100 diagram correctly cover it?
 
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