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 ...

Your car won't start for the second day in a row. You ask your neighbor for a jump (again) and head off to work — late, of course. You come to the conclusion that it has to be the battery or the ...

Some drivers have to jump start their cars regularly when temperatures drop. Here's why car batteries are so sensitive to low ...

So you've successfully jump-started your car back to life; what's next? The last thing you want to do is immediately shut off the ignition and hope the engine roars back to life the next time you turn ...