Hi first time user so bare with me. I recently bought my first Saab which is a 1995 900 s. I found that when im in the car for a while it is overheating even where the ignition key goes it is hot to touch! I attempted to empty the radiator by the radiator drain plug and nothing came out so i unhooked the two top tube and put water through the coolant tank and it only came out the top (Doing it wrong most likely). Am i better off removing the radiator to clean it out or would a flushing product do the job. This car is a labour of love and i want to do it myself.