If I want to do a basic drain/refill of the radiator and the overfill tank, do I have to open the bleeder valve(if there is one on the car)to get the bubbles out???
It's easier and faster opening the bleeder. Open the bleeder when you go to fill the system and close bleeder when a stream of coolant flows out of it. Then do the run engine until thermostat opens procedure.
It might not have one. some of the later models have the thermostat at the waterpump inlet and don't have a bleeder. Just go ahead with the normal fill and bleed procedure.
I did a coolant drain & fill on the wife's 2004 Accord with a 2.4L about a year ago when I first bought the car. I don't recall there being a bleeder on it at all.
I dumped the antifreeze from the pan into a couple of empty milk jugs- mostly to measure how much came out. So when I refilled with Honda Type II, I made sure that that same amount went back in. I was able to pour most of it right into the radiator. Had to over-fill the overflow bottle a little to get the rest in there. It was down to the correct level after a couple of heat cycles.