[superduty]

Just completed a coolant refresh and these procedures where very helpful. I used an Airlift tool, however, so I didn't need to perform the bleed process. The tool is very simple to use. It creates a vacuum in the coolant system and you just drop the feed line into a bucket of premixed coolant and it sucks it up. After the initial fill I had a little more coolant left compared to the amount that came out. After running the engine for about 5 minutes followed by a cool down, I topped off the system. It took slightly more than drained out (probably a little low when I started) so I'm sure bleeding isn't necessary. I wish I could figure out why about a 1/2 gallon of coolant isn't drained though. Seems like about 1.5 gallons is all that can be drained.

Also I forgot to mention that the other advantage to using the Airlift is it's able to verify that there are no leaks in the system before the fill. One of the best tool investments I've ever made.