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Old 04-09-2019, 08:09 AM   #6
dtpeez
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What I Drive: 2003 Ford Focus ST170 3dr Blue

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Have you load tested the battery? The battery is like a capactor, it smooths out the ups and downs from the alternator. If the lights are flickerin at idle I would either say the battery is on it's way out, or possibly the positive terminal on the alternator has corrosion and the voltage is not making it to the battery smoothly. (Just my 2 cents worth)
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