This may be very dumb but I can't get my radiator to drain. It's a 91 Loyale. The drain valve is a plastic job on the bottom right corner or the radiator. You turn it with your fingers. I can get it to turn but I'm not getting any fluid to come out and yes, the radiator has fluid in it. It's very stiff to turn and I'm afraid to crank on it and break it. Any comments?

There may be a vinyl tube attached to the drain cock that you need to rotate down. Open up the radiator cap. If no coolant still, then just place a bucket below the drivers side radiator hose and drain as much as you can. Remove the other radiator hose. You can remove a partially filled radiator.

The drain may be clogged - turn the drain cock out till it actually comes out of the radiator - that may help a bit.

 

Otherwise just take the lower radiator hose loose - that will definately do it.

 

GD