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alternator problem? 850

posted by  someone claiming to be Earl on  Tue Mar 26 00:32 CST 2002 [RELATED]

Looks to me like your alternator's charging normally but the way it's done (to be sure) is to have a shop use a load testing device called a Vat-40 (or newer). That same device can load test the (fully charged) battery as well and give the user an idea of possible electrical draws to the battery, key off.
If the battery and alternator test OK, it's best to check the car for electrical draws using a good digital VOM like a Fluke meter.
Don't guess at your alternator as with 850s that I've seen with charging system problems, the alternator either works or it doesn't (no charging whatsoever). I have yet to see one that only partially charged, like one bad diode for example.






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