Noise and/or Dead Battery Due to failed Alternator on GMC 2500 Pickup

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 64,320 (64,320–64,320)
Engines affected: 5.7L V8, 6.5L V8 Diesel Turbo, Gasoline
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000
12 people reported this problem