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markbucher1

markbu ... 2/9/2013

2010 GMC Acadia SLT 2 Cyl 0.3L

Engine

What would cause my volt gauge to run 15 plus.

1 Answer


Jimm

Jimm 2/9/2013

It depends - on the electrical load; types of accessories operating - such as high beam headlamps, air-conditioner, heater / blower fan, etc.
Typically, the alternator and built-in voltage regulator will recharge the battery and supply all the current and voltage needs for the electrical system.
You may have the electrical system / alternator output tested - for free - at any local auto parts store.

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