This is probably dumb but I am no good at electrical and it makes me nervous. Just to be sure I get this right…
Your recommendation is to tap one end of the jumper into the brown wire at the VR. Add a 10 ohm resistor on the jumper. And tap the other end of the jumper into a 12V hot source. The hot source is constant 12v or key on (acc) hot?
Hopefully that Q makes sense.
Thanks for all the help.
Quote:
Originally Posted by VetteVet
The brown wire comes from the key switch and runs through a 10 ohm light (resistance) on the light dashes and also through a resistance wire on the gauge dashes. This resistance wire is there to protect the charging circuit to the VR in case the light goes out (blows).
I would run a jumper from a 12 volt hot source in series with a 10 ohm resistance to the brown wire connection on the VR and see if the buzzing stops. I have an external wire like this on my truck and it works fine. Temporary for testing of course for an SI alternator.
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