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09-20-2020, 08:09 PM
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#26 |
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Registered User
Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
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Re: 72 GMC 2500 - electrically dead!
The factory harness breaks down to many parts
Headlight harness Engine harness Dash harness Tail light harness etc Can be orderded update for si altenator and hei dizzy https://www.americanautowire.com/sho...-harness-53797 I bought mine from brothers years ago even then they where slow The set i got from them is the m&h setup my understanding they used to be the same company until one partner moved across the nation |
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09-20-2020, 10:28 PM
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#27 |
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Registered User
Join Date: Aug 2020
Location: Luray, VA
Posts: 35
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Re: 72 GMC 2500 - electrically dead!
To others who sent pictures - many thanks! One question - in some of the pictures there is a "junction" of sorts that I found on my truck. Always in black wires. If you pull it apart you see a little clear tube going into a sort of sleeve. What the heck are these things? Never seen them on other cars and trucks. Did GM use them?
Bill in Luray |
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09-20-2020, 11:16 PM
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#28 | |
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Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 510
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Re: 72 GMC 2500 - electrically dead!
Quote:
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09-20-2020, 11:19 PM
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#29 |
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Registered User
Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
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Re: 72 GMC 2500 - electrically dead!
Ammeter fuse there are two on the truck little glass tube is a fuse
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09-24-2020, 03:48 PM
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#30 |
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Senior Member
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 3,561
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Re: 72 GMC 2500 - electrically dead!
Ammeter wires go through firewall here. The black one goes to the fuse holder by the battery, and the black with white stripe one goes to the fuse holder by the driver side headlight.
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