Alternator Replacement

The alternator is the component that charges your battery and powers your vehicle's electrical system while the engine is running. When it fails, the battery drains, electrical systems start shutting down, and eventually the vehicle won't run at all. A failing alternator can mimic battery problems — many drivers replace the battery two or three times before realizing the alternator was the real issue.

WestPro Auto replaces alternators on-site in Culver City and nearby cities. Leo Juarez diagnoses the charging system to confirm the alternator is the problem, then replaces it at your location — typically in about an hour. No towing needed, and no risk of getting stranded on the way to a shop.

If your battery keeps dying, your lights are dimming, or you see a battery or charging warning light on the dashboard, it's worth getting the alternator tested before spending money on another battery.

Signs You May Need This Service

• Battery or charging system warning light on the dashboard
• Dimming headlights or interior lights
• Battery that keeps dying despite being new or recently charged
• Whining or grinding noise from the front of the engine
• Electrical accessories (radio, power windows) acting erratically
• Vehicle stalling or dying while running

Not sure if this is what you need? Check our FAQ page or contact Leo to describe what you're experiencing.

What Happens During the Repair

Leo tests the charging system voltage to confirm the alternator is failing. He then disconnects the battery, removes the serpentine belt, unbolts the old alternator, installs the replacement, re-tensions the belt, reconnects the battery, and verifies the charging output. The entire process typically takes 45–90 minutes depending on the vehicle.

Why Mobile Service Works for This Repair

If your alternator has failed, driving to a shop risks getting stranded. A mobile mechanic eliminates that risk entirely. Leo comes to wherever the vehicle is — home, office, or the parking lot where it stopped — and replaces the alternator on the spot. In most vehicles, the alternator is accessible from the top of the engine bay, making it a straightforward on-site repair.

Leo provides this service throughout Culver City and the surrounding Westside. See all service areas.

How do I know if it's the alternator or the battery?

Can I drive with a bad alternator?

Do you supply the alternator?