One problem related to engine belts and pulleys has been reported for the 2004 Chevrolet Silverado. The most recently reported issues are listed below.
The contact owns a 2004 Chevrolet Silverado. The contact stated that while driving at various speeds, the check engine light illuminated and the vehicle suddenly stalled. The contact indicated that after restarting the engine the vehicle operated as normal. The contact also indicated that the passenger side seat belt had malfunctioned and the passenger was unable to move while the seat belt was in the locked position. The vehicle was not diagnosed or repaired. The manufacturer was notified of the defect but no solution was offered. The failure mileage was 130,000.