2004 Chevrolet Silverado 3500

2 PROBLEMS: 1- WHILE DRIVING WITH NO WARNING THE BRAKES FAILED. AFTER COASTING TO A STOP I NOTICED A BRAKE LINE HAD RUPTURED AT THE FRAME RAIL UNDER DRIVER AREA. I WAS ABLE TO CRIMP BRAKE LINE WITH A PAIR OF VICE GRIP PLIERS AND MOVE TRUCK TO A SAFE LOCATION FOR REPAIR. I BELIEVE THE BRAKE LINES USED ON THESE TRUCKS TO BE OF SUCH INFERIOR QUALITY THAT SUDDEN FAILURE IS A COMMON OCCURRENCE. 2- MY TRUCK HAS DUAL TANKS FOR DIESEL FUEL AND THEY HAVE WORKED SPORADICALLY FOR YEARS. I DID NOT SEE THIS AS A SAFETY ISSUE AS MUCH AS AN INCONVENIENCE. HOWEVER WHILE MY TRUCK WAS IDLING ON A HOT SUMMER DAY I NOTICED DIESEL FUEL DRIPPING OUT OF THE FRONT TANK FILLER CAP. APPARENTLY THE PUMP THAT PUMPS THE FUEL FROM THE REAR TANK TO THE FRONT TANK WAS RECEIVING A SIGNAL TO PUMP EVEN THOUGH THE FRONT TANK WAS COMPLETELY FILLED. IT WAS CONTINUING TO PUMP AND LEAKING THE FUEL OUT THE FILLER NECK. THIS SEEMS LIKE A SERIOUS SAFETY HAZARD TO ME. I DO NOT KNOW IF THE ROOT OF THE PROBLEM IS THE FLOAT THAT STICKS IN THE REAR TANK, THE SENDING UNITS THAT FAIL, A WIRING GROUND ISSUE OR SOME OTHER ELECTRONIC GLITCH. I DO KNOW ISSUES WITH DUAL TANK DURAMAX DIESEL TRUCKS ARE ABOUT AS COMMON AS THE TRUCK ITSELF IS. AFTER RESEARCHING ONLINE I REALIZED MANY OTHER OWNERS OF MY VEHICLE MODEL HAVE HAD BOTH OF THE EXACT SAME PROBLEMS SO I THOUGHT I SHOULD REPORT THEM.