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Q:

headlights shorting out and loud high pitched noise coming from dash on 1992 Lincoln Mark VII

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I have had a loud high pitched noise coming from under the dashboard for a couple years that comes and goes and now my headlights have shorted out first the low beams now high beams
(1) Answer
I am concerned that you have an electrical concern that could progress and become an issue. I do not know what is causing the noise -- perhaps an auto lamp relay? Hard to say. Get it inspected locally, if you can, for a firtst hand oopinion.