i fill up some antifrezze in the radiator
drivin for the whole day then the next day i check the radiator its empty
do anyone know watt the problems is?

 

might be cracked

 

did you fill it up correctly? you may have air in the system which will cause you problems.

you should do it with the engine running (when its cool, obviously). give it some revs to get the coolant circulating in the system and add some more.

 

Pinhole leak, blown head gasket - could be anything, go to your local garage and get them to do a pressure test

 

I was loosing coolant also, very slowly.

It turned out that there was a crack/leak on the water pump. Replaced the water pump.

Do a visual check from the passanger side - you should be able to see the water pump. Check it while the engine is running. My car dripped a dropplet of coolant.