How to flush the radiator on a 98 ford cargo van?

How do i flush the radiator on a 98 ford cargo van?

Disconnect lower radiator hose from motor and put the end in a bucket and remove coil wire from coil and crank but don't start motor until no more fluid comes out. Replace hose and fill up with fluid and crank again for a few seconds and add more fluid until full. Replace coil wire and start vehicle. I'm not a professional so please don't do what i just said. Get a shop manual or google the answer.