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Re: Dead alternator...or voltage regulator? Or both? Help!
Posted by Berger MA [Email] (more from Berger MA) on Thu, 1 Apr 2004 06:59:17
In Reply to: Dead alternator...or voltage regulator? Or both? Help!, mike saun, Thu, 1 Apr 2004 04:12:54
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The Voltage Regulator and the Alternator are part of the same assemble. Your best bet is to take a voltage reading on the new battery once installed. Should be between 11.5 and 12.0 Vdc. If fully charged. Start the engine and measure the voltage across the battery again. Should be 13.5 to 14.0 Vdc. If your charging system is unable to get 13.5 to 14.0 Vdc at the battery you will need to check the voltage at the alternator. It is Possible to have a loose connection to Ground or the Positive Voltage Termination. Usually when the Brushes go you will need to have the alternator rebuilt due to electrical arcing causing internal damage and voltage spikes damaging the Voltage Regulator. I have been in this situation many times on different type of cars. If the charging voltage is not present, the alternator is at fault. If you purchase an alternator with minimal warranty you will only get one to two years. I recommend going for the lifetime warranty or having yours rebuilt.
How many miles on alternator? 80k is good for a bosch.
Berger MA
97 900SET
113K
posted by 12.33.2...
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