Question about 2000 Honda Civic

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All lights on 2000 honda civic flicker

At engine idle flicker is not noticiable. But increase rpm and headlights and all dash lights quickly surge up and down- a slight flickering. Radio is also affected. Is this the alternator? brushes? No starting problem. Is there a modulator? How do I troubleshoot this problem?
Thanks for your help
Barry

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You have a bad alternator......

Posted on Jan 12, 2009

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Sounds like you have a voltage regulator problem which is in the alternator, not changable. would recommend taking it to a battery store and have them do a load test. more and likely you need a new alternator

Posted on Jan 12, 2009

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The charging system will sense the load and increase it's output to compensate..
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