ok when i first bought my car it overheated due to a bad upper radiator hose...or did it? after i replaced it i thought i was done with that issue but today i took it for a 20 min drive and it over heated, the liquid was gone and the car started smokin. i put some coolant and drove her back home to take a look, the hoses look fine although the upper hose has a bubble in it again...what would you guys recomend i do as far as a radiator flush or are there other things i can check that might cause my upper hose to do this? what are some other possibilities? any and all help is appreciated. thanks guys.