Not knowing how to troubleshoot electrical issues is a death sentence for any DIYer’s bank account. Your only other option is a wild goose chase by throwing money at your car until the problem’s fixed ...

We may receive a commission on purchases made from links. You hop in the car, turn the key or push the start button ... nothing. Or maybe one of your headlights goes out when you're driving at night ...

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 ...