Failed alternator can cause "no charge" conditionon GMC Sonoma

The alternator may fail, causing a "no charge" condition. An internal bearing may also fail and cause an abnormal noise. If the vehicle is driven too long with a failed bearing, the alternator may stop turning, which can cause the serpentine belt to break or the engine to stall and not turn over.

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Average mileage : (–)
Engine Affected: 4.3L V6
5 Years Affected: 1991, 1992, 1993, 1994, 1995
5 people reported this problem
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