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Old 08-08-2009, 05:03 PM
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Jeremy5848 Jeremy5848 is offline
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Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,401
If it is not the brushes/regulator, and if there isn't a rogue load such as a stuck-on preglow relay, then the alternator itself is the next suspect. A bad diode in the diode array could cause the symptoms you are seeing. Note: most alternator sales are based upon you turning in your old alternator as a "core." When you do so, make sure you keep the best regulator, don't give it away in the core. In fact, I don't know if rebuilt alrernators even come with the regulator or is that a separate purchase? Can we hear from someone who has been there before?

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