The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.
Average mileage: 96,262 (36,500–251,000)
Engines affected: 2.0L 4 Cylinder Turbo, 2.4L 4 Cylinder, 3.1L V6, 3.8L V6, 3.8L V6 Supercharged
25 people reported this problem