Sent: Sunday, January 15, 2006 3:44 AM
Subject: [DML] Digest Number 3078

There is 1 message in this issue.

Topics in this digest:

1. Re: Alternator Sound
From: "Dave Swingle" <>

Message: 1
Date: Sun, 15 Jan 2006 05:41:17 -0000
From: "Dave Swingle" <>
Subject: Re: Alternator Sound

What kind of alternator do you have? I've heard of this issue on some aftermarket units, just wondering. 

Dave Swingle

--- In, "valleyrat12" <valleyrat12_at_dml_y...>
> Gee I'm posting here a lot...
> OK, I noticed while my car is idling right after it is started that my 
> battery voltage is low, below the 14 or so volts it should read when 
> running. If I rev the engine the meter will suddenly bounce up to 
> where it should be and continue even when the engine runs back down to 
> idle, indicating that the alternator is working. Also, a whirring 
> sound can be heard from the alternator AFTER the gauge indicates that 
> it is working. I have cleaned all of the contacts
> the condition persists. 
> I have noticed this on other cars and assume that the sound is normal, 
> but I assume that my alternator is dieing. What would cause the 
> alternator to work only after the engine is revved up to 3000 rpm? 
> Also, there are some wires (2) that are hanging down by the alternator 
> that are not hooked up, Black/Green I think.
> Nathan
> 2277


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