Reviewed by Shannon Martin, Licensed Insurance Agent.
Oh no—sorry to hear that happened! Can a bad alternator ruin a battery? Yes, a bad alternator could prevent your vehicle’s battery from recharging while it runs, leaving you with a dead battery the next time you try to start your engine.
In addition to a dead battery, here are some other signs you might have a bad alternator:
Frequent engine stalling
Your check engine light is on
Dimming cabin lights or headlights (especially if they brighten and dim with your RPM)
Burning smell
Groaning or screeching noises
If you suspect you have a bad alternator problem, having your mechanic take a look is a good idea.
As you’re looking after your car, it might also be a good idea to take another look at your
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