Tl* the contact owns a 2001 gmc yukon xl 1500. while driving at various speeds, the contact noticed a burning odor. the contact also stated that while refueling the vehicle and attempting to start the vehicle, the vehicle would not start. the vehicle was taken to an independent mechanic for diagnosis, however the details of the diagnosis could not be provided. the vehicle was not repaired. the manufacturer was not made aware of the failure. the failure mileage was 150,000.