I just tried to drain the radiator on my 02 blazer. I found the little white plug on the passenger side and loosened it with a 1/4 rachet but not much came out. I put Prestone cleaner in and it filled up quickley. Is there another drain or is the dex-cool that sludged up that it pluged the radiator? I flushed out the heater core today and the air is very hot, but I wanted to get the radiator flushed out too. I have read the other post on this subject but just wondering what anybody thought. I have purchased a flush kit and planed on doing it. Thanks for any help.

should be bottom driver side for the petcock, or directly on the bottom.


Where are you going to flush this at out of curiosity? You might be better off taking it in to get that done, that EPA fine is a PITA.

bottom driver's side. Jus ta valve you turn.

You should really find out what you are doing before you just start removing things like this.

It sounds like you had the right plug. It is on the passenger side bottom. After you turn it 1/4 - 1/2 turn, you have to pull out on it to open it. There are pictures of it in this thread:
http://www.automotiveforums.com/vbulletin/showthread.php?t=498467

Where do most people have this draining petcock?

On my 98 it's on the passenger side.

Passenger side on my 99

96 Passenger side.

'96 passenger side.

Driver's side, on my '95. :D Just had t' break the pattern up!

Well shit, my bad.

Guess anything 96 and on is different.

GM's gotta keep us on our toes you know....

So true.

'96 passenger side.
Lucky you. Some of the 96's don't have a drain. Guess who got one of those little beauties.
HEY, I think I figured out the purpose of the Blazer. It's to keep the parts replacement people in business.
I figure after parts replacement costs and doing my own labor, it costs me about $.95 a mile to drive it.