GMC Safari Problem Report

GMC Safari Failed alternator can cause "no charge" condition

(10 reports)

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.

bearing whine. replaced. oreilly alternator measured 12.1 vdc. drove 10 mins and volt dropped to 9vdc and alternator not generating output. 2nd autoparts alt installed. same, no output power, just battery power. mechanic says its the control module. ??? -
Battery would not charge. Alternator stopped charging battery -
twice to this point in time -
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