Alternator not staying charged

Asked by Nov 16, 2016 at 03:49 PM about the 2007 Hyundai Sonata SE

Question type: Maintenance & Repair

Alternator will not stay charged. I have a
new alternator and the battery is good after
2days battery dies even while going down
the road

1 Answer

77,735

This vehicle has a computer controlled charging system, so it is possible that the ECM has lost the driver for the charging system, any good shop can find this out for you.

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