Car Batteries
Chevy Silverado

Why is your battery light coming on during driving In a 92 Chevy 1500 with 5.7 350?

131415

Answer

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Wiki User
02/05/2007

That usually means your alternator is not putting out enough volts to keep the battery charged. The alternator should put out between 12-14, most likely @13 volts. You can test it if you have a voltmeter or else go to Autozone and have them test it on the vehicle. You may want to make sure your belt is tight and is not slipping on the alternator pulley.