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Re: 2000 Chevy Impala 3.8L Over charging intermitante
Posted to Technical Discussion Forum on 5/24/2007

Hi Lonnie,

What is the most likely, is that you have a "Sensing" Issue. The orange wire to the alternator comes from a 10-amp fuse. Momentarily clip this wire, this would put you alternator in "Internal Sense" mode. Let it run, if no problem was observed, ei... Login to read more.