On certain trucks equipped with an 8.1L V8 (RPO L8-VIN G) engine have a condition in which the engine fuel rail pulse damper retainer clip may fracture resulting in inadequate retention of the damper.
Dealers will replace the engine fuel rail pulse damper retainer clip free of charge. The recall began on August 31, 2006. Owners may contact Chevrolet at 1-800-630-2438 and GMC trucks at 1-866-996-9463.