![]() ![]() How can you tell if the alternator has a problem? This is another charging system issue, like a dead battery, that won’t let you start your car. If your car won’t start, but your battery is fine, chances are you have a bad alternator. Bad AlternatorĪnother electrical component, the alternator, is a generator responsible for distributing electricity to the car and recharging the battery. Since this requires working with metal tools around a car battery, it’s best to have a professional handle the battery corrosion or bad connection situation for safety. However, if they aren’t loose but corroded or dirty, you should clean the battery terminals before reattaching or getting them replaced. If they move, the battery terminals are loose, and you need to make them tight. Then try to twist and turn the cable connections at the battery terminal. Bad Battery ConnectionĬars won’t start if the cable connections on their car batteries are ripped or loose.Īnother probable cause could be a corroded battery terminal that’s blocking the flow of electricity. If the battery voltage reading is low, you may have a weak battery and will need to charge or replace the battery. If you don’t know how to jump start a car with a jumper cable, look at your owner’s manual for help or call a mechanic.Ī mechanic will use a battery tester or multimeter to analyze the state of your car battery. You’ll need another car’s good battery or a portable jump starter to charge your weak battery. ![]()
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