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Alternator or what?


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dafeat
New User

May 26, 2011, 3:22 PM

Post #1 of 4 (1183 views)
Alternator or what? Sign In

Dim headlights, brights work decent. Whenever A/C or Heater is on I hear a buzz noise for a couple seconds and my lights flicker than pick back up. Car has no problem starting, and the alternator and battery were checked with and without loads. Alternator?


zmame
Veteran / Moderator
zmame profile image

May 26, 2011, 3:29 PM

Post #2 of 4 (1181 views)
Re: Alternator or what? Sign In

was a proper AVR test done on it with a carbon pile to test the battery and full output of the alternator?. Alternator may be working with or w/o a load, but may not be putting out what its rated for.


dafeat
New User

May 26, 2011, 3:43 PM

Post #3 of 4 (1178 views)
Re: Alternator or what? Sign In

I don't know much about cars. But I took it an alternator specialist so I am sure a proper test was done. He suggested voltage regulator brushes are most likely getting worn.


zmame
Veteran / Moderator
zmame profile image

May 26, 2011, 3:48 PM

Post #4 of 4 (1176 views)
Re: Alternator or what? Sign In

then you are looking at getting a rebuild or replacment alternator. if your regulator is not working properly it can cause all sorts of problems/damage to electrical system and damage your battery.






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