One problem related to transmission noise has been reported for the 1996 Chevrolet Monte Carlo. The most recently reported issues are listed below.
Was traveling 70mph when vehicle locked up suddenly. Was making noises before it happened. Spun around 3 different times before edging to side of road. Took to dealer. Was test driven. Was informed planetary gear failure caused transmission to lock up. Found pieces of metal in pan. Consumer is very uncomfortable to drive this car, the noise is still present. . Et.