It's possible water got on the serpentine belt and froze causing it to slip. If it happens again, stop the engine right away, then check to see if it is wet. If it's dry, use an inexpensive digital voltmeter to measure battery voltage while the engine is idling. It must be between 13.75 and 14.75 volts. Holler back with your findings.
Caradiodoc
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Sunday, January 23rd, 2011 AT 3:58 AM