Signs your alternator is failing
Dimming headlights, a battery warning light on the dashboard, a whining noise from the engine bay, and a car that dies shortly after a jump start are classic alternator symptoms. The alternator charges the battery while the engine runs; when it fails, the car runs on battery power until it's drained.
How the on-site replacement works
We confirm the diagnosis with a charging system test (a healthy alternator outputs roughly 13.8–14.5 volts). Then we disconnect the battery, release the serpentine belt tensioner, unbolt the alternator, install the replacement, and re-tension the belt.
On some vehicles — like certain V6 Toyotas or transverse-engine Chryslers — access requires removing a wheel or splash shield, which we also handle on-site.
When it can't be done at home
Very rarely, an alternator buried under the intake manifold requires a lift. We'll tell you upfront during the quote.
Get it fixed by a mobile mechanic
Matt Mobile Mechanic of Austin handles this at your home anywhere around Austin:
Popular areas: Austin, Round Rock, Pflugerville, Cedar Park, Leander, Georgetown
Frequently Asked Questions
How long does an alternator last?
Typically 80,000–150,000 miles, though Texas heat can shorten that.
Can I drive with a bad alternator?
Only briefly — the car will die once the battery drains.
Should I replace the battery too?
Only if it tests weak. A failing alternator can damage a battery by undercharging it.