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Headlights

(1999 Ford Contour)
in New Oxford, PA on October 06, 2009
My alternator was replaced and now all my lights in my car flicker and they flicker really bad when i have my defroster or ac running. My dash lights and dome light and headlights all flicker at the same time
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Popular Answer
I suspect bad grounds or power or just flat out a poorly re manufactured alternator.. An ocillascope would quickly identify if the alternator diode pattern is OK. With a volt meter does the alternator charge the battery at approx. 14.6 volts
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