The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.
Car Problem Reports
GMC Yukon Alternator May Fail and Cause Noise and Dead Battery
GMC Yukon Problem
Engines Affected: 5.7L V8, Gasoline
Visitor, 1996 GMC Yukon, 5.7L V8, 158,000 mi
Car Died this is my 3rd alternator and battery replacement the first was around 60,000 the second around 100,000