Serpentine Belt Tensioner Pulley May Wear Out on Pontiac Grand Prix GTP

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.

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Average mileage: 143,060 (75,000–203,546)
Engine affected: 3.8L V6
9 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003, 2004, 2005
20 people reported this problem
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problem details
1999 Pontiac Grand Prix GTP 184,000 mi,
Rattling sound like balbearings loose
1999 Pontiac Grand Prix GTP 113,000 mi,
tension pulley made a kind of squeeling/ grinding noise a week prior to it going out and the belt slipping off.
Reparied by a great shop in Charleston, S.C.