We earn commissions from purchases you make using links in our articles. Learn more. The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially ...

There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up the best car battery tester and get a readout of what’s going on. Skip the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (iSeeCars) — Your alternator is one of the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (iSeeCars) — Your alternator is one of the ...

The alternator in your vehicle is not a disposable item like the engine oil, automatic transmission fluid (ATF), or radiator coolant. The average lifespan of an alternator is around 80,000 to 150,000 ...

(iSeeCars) — Your alternator is one of the hardest working parts on your vehicle. It’s a common misconception that the battery in your vehicle is what supplies your power while the vehicle is running.