What's involved
What this repair actually is.
The alternator generates electricity while you drive — it charges the battery and runs everything from headlights to the fuel pump. When it fails, the car runs off battery alone until it dies, usually within an hour of driving. We confirm the alternator is actually the problem, install a quality replacement, and verify the charging system output before returning the car.
Symptoms
How you can tell.
- Battery warning light on while driving
- Lights dim at idle and brighten when revving
- Whining or grinding noise from the engine
- Battery keeps dying even after replacement
- Electrical accessories getting weaker as you drive
- Burning rubber smell from a dragging pulley
If you delay
A failing alternator will eventually leave you stranded mid-drive when the battery runs flat, and repeated deep discharges can ruin a good battery.
Maintenance tip
No service interval — replace on failure.
Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.