ok. check the hose that goes from the radiator to the overflow tank.

 

I have already replaced that

 

so you have replaced the overflow hose and the container? the container gets abused being under the battery.

 

When i replaced the overflow, it came with a new hose

 

you have a leak somewhere. either you got a bad hose or a crack in the fitting on the radiator or in the new container. can you track the leak, clean and dry everything then fill the sytem and bring the motor up to operating temp, turning it off once in a while to look for signs of a leak and where its coming from. if its what i think it is its pushing coolant out as it heats up and sucking air in as it cools

 

ok well, I think that it might be something bigger. Cousin came over and looked at it, he said it might be a head gasket or a cracked head.

 

that would do it,,, strange it didnt show up on the pressure test.