before you take off the hose you want to make sure you can open the bleed port first otherwise You may not be able to properly bleed the air out of the cooling system. The bleed port is that allen screw just above the tstat.

You MUST open that up before you start refilling the system with coolant. Once coolant starts coming out of there you put it in a few more turns to slow down the flow which will help draw out any more air.

Its worth the extra $15 to get a radiator fill funnel so that you can then run the engine with the rad cap off to let the rest of the air escape.

Run the engine until the fans turn on, this means the tstat opened. Then turn the engine off, cap the radiator, make sure the reservoir is full and let it cool down.

Watch the reservoir level after the next few heat/cool cycles since it may drop a bit as any extra air works its way out.