Altermator Prob

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04-24-2003, 08:31 AM

85 mazda 12a

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Join Date: Jan 2003

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ok i was driving last night and my headlights went dim and all else i hit a bump and all was back i carged the batt over night andf now it isnnt charging i cleaned all contacts and cables any help apreciated

04-24-2003, 10:47 AM

j9fd3s

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Join Date: May 2002

Location: California

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well, if its not the battrey or the cables its gotta be the alternator

mike

04-24-2003, 08:17 PM

Racer X

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Location: Vanderhoof,BC(Canada)

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Quote:

Originally Posted by j9fd3s' date='Apr 24 2003, 07:47 AM

well, if its not the battrey or the cables its gotta be the alternator

mike

Don't rule out the voltage regulator.

04-24-2003, 09:55 PM

treceb

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Join Date: Aug 2001

Location: santurce

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i think we just talked about this a week or so ago. i beleive mike(j9fd3s) said that if the car runs without the battery, the alternator is fine. if it fails, then the alt is not working properly.

04-25-2003, 06:58 PM

rotary fury

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Location: newark nj

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get a battery/alternator tester is the easiest way to find whats wrong

04-26-2003, 10:37 AM

drifter

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Location: Perth, Western Australia

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Quote:

Originally Posted by treceb' date='Apr 25 2003, 10:55 AM

i think we just talked about this a week or so ago. i beleive mike(j9fd3s) said that if the car runs without the battery, the alternator is fine. if it fails, then the alt is not working properly.

Yep, thats right, The battery is only for starting it, then everything electrical runs off the alternator. If your alternator is bad, your battery will go flat because its not being recharged.