Quote:
Originally Posted by rayray3009
its a new alternator not a rebuild. using my handheld scanner i get about 12v at the battery above 1500 rpm but it starts to drop down to 11.0v sitting in traffic at idle no accessories on
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The alternator should be putting out more like 14 volts when the car is running. However, the battery is on the other side of the car so you should get your DMM out and check voltage under the hood.
Stranger things have happened, than buying a new alternator that is bad from the factory.