Flushing a 2.2 radiator the easy way

[John Gilbert]

For a tech writer I hate to admit I was a little stumped at first, but I figured out the fastest and easiest way to flush the cooling system on my '00 S-10 with a four-banger. Some of you guys might even be familiar with this truck, it's white S-10 I bought shortly after starting Tailgate magazine, and used in some tech in TG.

Anyways, forget about the draincock you can't get to on the bottom of the radiator and disconnect the lower hose. I dumped the first load of old antifreeze with Prestone fast flush in it, and then repeated the process about ten-times until the water was clear. Antifreeze should be a 50-50 mix, so I added about a gallon and a half of pure Prestone, and it took it to the right mix. I verified I had the right protection by used a Prestone antifreeze level tester.

My next project later today is dump the oil which I always hate because the 2.2 filter is a pain to get to.

That's my 2-cents, hoped it helped someone.