so i had to replace an oring on my coolent pipe...that went easy now im trying to get the air out of my system and i let the car get warm...undo my bleeder screws but nothing comes out but steam? i should have some bubbles then a steady stream of coolent right...this is on my 03 monte carlo ls 3400

 

so kept the radiator cap on........opened a bleeder.......heater blows cold air..and it was burping a bubbles was coming out...then it kept getting hottter then steam came out of the bleeder so i shut it off...