1965 weird alt light problem

rtavani

New Member
Jun 21, 2019
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New York
I having a weird issue which i have been having and looking for suggestions as where to begin. Usually i hear people having issues with their alt light going on AFTER turning on headlight, radio, etc. My Alt light comes ON when no devices are on. If i turn the headlights on, or open the door, or turn the radio on, the Alt light will go off. If its only just then engine running, the light flickers on. Any thoughts??? tks
 
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The Shemdogg

Active Member
Mar 15, 2016
137
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san jose CA
Probably a loose wire, wiggle the harness under the dash in different places and maybe you will see the light react w moving the wires to give you an idea of where the problem is. Good luck

shem
 

2Blue2

I partied with that dude!, um girl, um whatever...
Mar 5, 2019
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Oahu
Bad ground, so power has to find a different route.
 

tos

SN Certified Technician
Apr 27, 2001
880
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Cincinnati Ohio
Bad ground, so power has to find a different route.
Yep. Check your main grounds then your harness ground behind the gauge panel. When you open a door then it triggers a dome light which it then uses that ground. Easiest path of resistance.
 
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