alternator

Asked by joeyroul Dec 16, 2018 at 05:48 PM about the 2008 Scion xD

Question type: Maintenance & Repair

whine noise - when I step on gas battery light comes on

1 Answer
42,870

Hornet_2497 answered 5 years ago

The whining sound from an alternator is a sign the bearings are failing and in this case the diodes are going. And the battery light is saying it's not recharging enough to keep up with the load...burnt diodes. Test/replace your alternator at the parts store and things should be okay. Have them test the battery just in case there is an internal short overloading the alternator.

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