Question about 2006 Ford Focus

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Battery light comes on when stopped or at idle goes out when driving

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Sounds like the voltage regulator is malfunctioning.

Posted on Nov 14, 2010

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This is definitely something to do with one of three items in your charging sequence: your battery, your alternator, or the voltage regulator. You can go to places like Advance Auto and have the system tested, as well as getting the replacement parts- depending on the component that is going faulty, it could be simple (replace the battery, terminals, something along those lines) to replacing the voltage regulator or alternator- alternators are pretty simple to replace- you would need the manual (Haynes or other car repair guide) and the appropriate tools- this would save you ~ 100 for labor, but would cost about 90+ for the parts

Posted on Nov 15, 2010

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