Chevrolet Repair: Coolant Recovery Tank, coolant recovery, recovery tank

Question
I have an overflow coming to my recovery tank theres an extra hose on the tank by the pressure cap which spills out antifreeze what would even cause the antifreeze to reach such a high level to fill the recovery tank all the way up ?

Answer
HI D'ANDE, ONE OF TWO PROBLEMS WILL CAUSE THIS. THE FIRST BEING THE RESERVOIR TANK IS OVERFILLED SO WHEN THE ENG GETS WARMED UP THE TANK WILL FILL UP THAT MUCH MORE..THE SECOND PROBLEM IS THE ENG IS RUNNING TO HOT,, ALMOST OVERHEATING WHICH WILL CAUSE A EXPANSION OF FLUID OF COURSE..CK YOUR TEMP GAUGE AND SEE IF IT IT RUNNING HOT,, IF SO CORRECT THIS PROBLEM AND THE OVER FLOW PROBLEM WILL BE TAKING CARE OF.. I HOPE THIS HELPS YOU,,,,TOM..