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Pulsing Lights

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hey guys, so i noticed on an hour long drive today my lights started pulsing under throttle, its never done this before. it affects all the lights on the truck. no difference in engine or anything else noticed. please help. thanks - trev

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That sounds like maybe a problem with your alternator?

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Sounds like a possible faulty voltage regulator in your alternator.....

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Start by cleaning your battery terminals with a fine grit sand paper.

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alright so i was told by numerous mechanics that my alternators shot, anyone near newburgh ny that knows someone who could re-build them? if not i need to get a new one, just need to know if its a 2 pin or 4 pin

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