A question about is there a sensor that shuts down the alternator behind the dash

Asked by GuruXS7YH Oct 28, 2018 at 10:41 AM about the 2005 Chevrolet Impala FWD

Question type: Maintenance & Repair

In the 2005 Chevy Impala if the
car has been sitting a couple
months is there a sensor that
shuts down the alternator

3 Answers
157,475

Bob answered 5 years ago

There is no sensor that shuts down the alternator. A voltage regulator integral to the alternator controls the voltage.

Mark helpful

GuruXS7YH answered 5 years ago

So it's possible the voltage regulator needs to be replaced or does the alternator need to be replaced

Mark helpful
157,475

Bob answered 5 years ago

The voltage regulator in integral to (part of) the alternator. Get it tested either on or off of the vehicle before buying a replacement as a wiring issue can also cause charging issues.

Mark helpful

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