How to Check an Alternator

Without a properly working alternator, your engine won’t have the voltage it needs to run, and your battery could experience permanent damage.

Join Ronnie with AutoZone for a quick, easy-to-follow guide on how to check for signs of a bad alternator so you can ensure your vehicle is working properly.

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Make sure your vehicle is properly secured before performing any automotive work. Wear safety gear as recommended. These videos are intended as an instructional guide for repair. You may encounter slightly different situations with any individual vehicle. Always capture and dispose of or recycle toxic chemicals properly.