I was trying to do a flush on my radiator.was able to locate the drain plug on the right side front of radiator. But can't seem to find the block plugs near the engine. Can someone please help me!

They do clog up and will not drain. You probably found the drain. Pull the lower radiator hose. If you have access to air and can shoot it up in the hole. This might help you problem.

There is a drain in the side of the block normall near the back on the side. Sometime it is a tap that you screw in not out to open it. It is possible to flush without removing the plug but if you want a good job take the time to remove the thermostat and flush using the bottom radiator hose and not through the radiator as you won't want any muck blocking up the cores in the radiator. Then flush the radiator from bottom to top.

Theres no such thing as a diagram, here are the draining instructions, hope this helps...

1-Place a large drain pan beneath the radiator drain plug. The drain plug is located on the passenger side at the very bottom of the radiator on the engine side.

2-Make sure the engine is cool. Open the hood of the truck and remove the radiator cap.

3-Loosen the drain plug. On the 2000 Blazer, the drain plug is a wing-nut type of plug. Twist it with your fingers until the coolant begins to drain.

*To flush the block, once you have drained the radiator, run the engine for a bit untill the temp gauge goes up to normal, then the coolant will have been evacuated from the block. DO NOT leave the engine on, once it reaches normal temp, (this will happen quick) turn off right away, otherwise you'll be forking out a few hundred $$$ to fix the worped heads.
4-Tighten the drain plug with your fingers once the coolant has drained fully from the radiator. Remove the drain pan and dispose of the used coolant properly.
Some service stations will take and recycle your used coolant.
Hope this helps...

Read more: How to Drain a Radiator From a 2000 Chevy Blazer ' eHow.com http://www.ehow.com/how_6357264_drain-radiator-2000-chevy-blazer.html#ixzz1VS4RBufX

Facing the front of the car, the drain plug is at the bottom of the radiator, right hand side, between the support rail and the radiator. There is a hole in the support rail to access this drain plug ( + ) style plug - unscrew counter-clockwise.

Hi, if there is not a petcock or plug at the bottom of the radiator, you can just remove the lower radiator hose to drain the coolant. Many cars do not have drain plugs. Please let me know if you have more questions and thanks for using FixYa.

Should be a drain **** at the bottom of the radiator that unscrews out. It looks like a wing nut has been welded to a bolt on the end of it. Another way to do this is just pull off the bottom hose.

None on the block, other than freeze plugs...
The only drain is on the bottom of the radiator (you knew that)...

I installed a Prestone motor flush kit and it flushes just fine, but does not "empty" the engine cavities. This is better, anyway.

You have to splice a "Tee" fitting into a convenient heater hose (highest one).

Hope this helps..

You will have to jack the car up and get under it to get to the drain valve, it is located on the back side of the radiator tank, drivers side, if not there then opposite side..

this is a platic drain plug uaually located on side where the lower radiator hose is attached it's under the hose,left side when standing in front of car

Hi and welcome to FixYa,

Initially, on most cars, the radiator drain plug is located at the lowest most section, often to one side. It could be a wingnut type or a regular bolt or squarish variety. In some instances it would be pretty difficulty to locate nor access due to the other coverings and components of the front end of the vehicle.

Alternately, removing the lower hose radiator side would serve the same purpose.

Good luck and Thank you for using FixYa. Happy Holidays.