2013 Chevrolet 3500 HD 4x4  Crewcab Utility Truck.  6.6 Duramax Diesel engine, Allison automatic transmission, Power windows, power door locks, leather interior, 9 ft. utility body with 6 compartments, truck is showing a code for diesel exhaust system with reduced engine speed. Mileage  200,000 K. Contact George 410-292-4646 https://www.yourtrucksforsale.com