I have a 2000 Blazer 4.3, and I'm getting ready to replace the radiator due to a crack in the plastic on the driver side. Anyways, I want to flush the entire system and to do this, I need to pull the block drain plugs. I have found the driver side plug with no problem, But when I was looking for the passenger side drain plug, I cant find it.

It looks like there is a solenoid or something mounted to the transmission/engine that blocks where the plug is located if it were the drivers side. Any help, preferably a picture would be greatly appreciated. Thanks in advance guys!

 

On the passenger side, that is your starter. The drain plug is up behind the starter. Not the most ideal place.

 

I assume the Blazer is like my Bravada. You'll benefit by removing the plastics underneath. It makes it easier to get to the plug and easier to not drench them all in coolant.