Buzzing noise from engine after dead battery was jumped. Lights were left on over nite. Now humming noise from engine.

Asked by Oct 19, 2016 at 09:38 AM about the 2004 Ford Taurus SE

Question type: Maintenance & Repair

2 Answers

110

That's the alternator running at maxx output desperately trying to charge the battery.

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Thanks, my mechanic (no charge) felt it was an electric motor that does the job of back in the day setting the idle and it was trying to recalibrate.

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