On 05/21/2016 1:17 AM, Snuffy "Hub Cap" McKinney wrote:
....

For awhile the needle would oscillation between the normal 50-60%
position a few degrees after driving a half hour or more with the
headlights on. ...
....
Any ideas how to troubleshoot this?

My money would be on the internal regulator in the alternator is acting
up...

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