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Summary: The most common electrical concern for most vehicles is a dead battery, but other problems involve circuit malfunctions, a sending unit that's not working or a malfunctioning input or output. Find out how a car battery can become depleted by a parasitic draw with help from an automotive technology professor in this free video on electrical problems in cars.
Bob Ricewasser is a former automotive technology professor and an avid car collector. He has a broad level of knowledge on vehicles, ranging from the "horseless carriage" era to...read more
"Okay, most common electrical concern that you have for your vehicle probably, is a dead battery and there's many reasons for the battery going dead. Sometimes something gets left on it doesn't shut off; sometimes a compartment door is left open and a light stays on. The other thing that takes place on a lot of cars today, if you leave the vehicle sit and you don't use it, some vehicles withing a week's time; some within a month's time, you get what's knows as parasitic draw which will deplete the battery. Other issues obviously are circuit malfunctions at the cost; the circuit not too hot to be operable; it could have a short circuit, it could have an open circuit, it could be grounded; you have an open fuse or relay. These are some of the many things that your electric come up with and also computer issues. You can have a; you know, a sending unit that's a, that's not working; you can have an input or an output that go into the computer that doesn't work and this will all cause a malfunction; some serious; some not; so, but again, you should address all these issues and make sure that you get them corrected."
eHow Article: About Common Electrical Problems in Cars