What to know about the Alternator:
The alternator is the device that charges the battery in your car. When you use electrical components in your car (stereo, lights, etc.), the battery loses power. The alternator recharges the battery, replenishing the lost battery power. The alternator is situated in the engine compartment. If the alternator is not functioning correctly, your car will only stay running for as long as the battery has power stored. Once the battery loses power, your car will not start. Normally, a malfunctioning alternator will turn on the battery warning light or will have a low volt gauge reading.
Facts to Note:
The mechanic should check the entire charging system before fixing a new alternator, including checking battery cables for corrosion and the condition of the battery.
How to Fix:
Examine entire charging system (battery, cables, alternator).
Check the drive belts.
Test alternator output.
Remove and replace alternator if found to be faulty.
Re-test alternator output.
Ask your mechanic to examine the condition of the charging system during every major service. Mechanic should also clean and tighten the battery cables during every major service.
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Common symptoms indicating you may need to change the Alternator:
Dead battery or battery will not hold a charge.
Battery warning light is on.
Importance of this service:
Your alternator charges your battery, which powers the electronics in your vehicle, such as the radio and the air conditioning. The battery is also needed to turn on your vehicle. A malfunctioning alternator will not charge your car’s battery, and your vehicle will eventually run out of battery life and not be able to start.