While driving at app. 45 mph on a city road there was a loud clunking sound in the engine followed by a continuous rattle. I pulled off the road and turned off the vehicle. The serpentine belt had come off the pulley by 3/4 inch. I proceeded to get the belt so that it would not work itself off. I promptly went to the local exxon and pulled off the belt and put the car on a lift. After inspection it was noted that the alternator bracket..an extension of the engine block, had broken off cleanly. After consulting with the mechanics there, and 2 other ase certified mechanics, it was determined that the cause was a defect in the casting of the engine block. I contacted the local Saturn dealership who was of no help. I will be having the braking tig welded back on Monday, then driving to the dealership with pictures and documentation asking for reimbursement of the cost.

- Blacksburg, VA, USA

The whine noise was heard from the engine diagnostics indicated that the coolant pump was leaking and the serpentine belt had failed.

- Chevy Chase, MD, USA

The serpentine belt became loose and the automatic belt tensioner fell apart causing alternator, water pump and power steering inoperable.

- Midlothian, IL, USA

Serpentine belt tensioner kept tension on the belt felled. Later, alternater came on, and then consumer lost power steering. If consumer was to lose it on the highway at 70 mph, there could be a serious accident. Mechanic says belt was very poorly designed.

- Midlothian, IL, USA

Noise from engine area due to failed compressor leaking and contaminated serpentine belt.

- Honolulu, HI, USA