Symptoms of a Bad Alternator: How to Fix It

If you’re seeing battery lights pop up on your dash, chances are it’s likely due to a faulty alternator.

Usually you can tell it’s the alternator by testing the voltage reading while the car is running. If you’re seeing below 12 volts show up on the multimeter, this indicates a bad symptom of failing alternator.

Get Your Tools On a Budget

Alternators keep your vehicle running while you drive on the road, as well as are crucial to starting your vehicle.

Saving your alternator early can also help save your battery from draining completely empty.

The repair video below is for KIA Sorento models between 2010-2015.

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Links to the Tools You Need:

1/2″ & 1/4″ & 3/8″ Drive Ratchet Set:

Wrench Set:

1/2″ Extensions:


Magnetic Stick:

Breaker Bar:

Torque Wrench:

Lug Nut Socket Set:

Industrial Hammer:

Pry Bar Set:

Oil Penetrant:

3 Ton Floor Jack:

3 Ton Jack Stands:

Safety Glasses:

Magnetic Work Light:

Work Gloves:

Rag Towels:

Brake Cleaner:

Magnetic Tray:


Watch how to replace alternator for 2011 KIA Sorento:

How to Find a Repair Shop Manual 

If you need a repair manual specifically made for your vehicle, go here to learn more. I’ll also show you a quick tutorial on how to use them online.

November 13, 2022