[epfriis]

I have a new thermostat that im trying to install. I have the Haynes manual and it says the open the radiator drain plug on the bottom right of the tank. It seems to only turn 90 deg, and nothing comes out. Thinking maybe it needs a vent up top, I took off the radiator cap-still nothing. Can someone please tell me how to drain this coolant enough to install this thing. Im trying to avoid taking off the lower hose.

[BlackShuck]

I just replaced the water pump on my I-6 this last week. And I don't remember the exact events, but basically I pulled the little drain hose from the clip and turned the valve (which started a little flow for me) but it seems like you can work the valve out of the radiator a little bit, and that allowed it to drain better. I guess you could also just remove the thermostat housing as is and replace the thermostat. I believe that you will lose coolant out of there regardless of whether or not you drain antifreeze from your radiator.
I replaced my thermostat also, even though I didn't know if the old one was functioning properly or not. I test both the old and a new one in hot water on the stove and neither of them responded the way that they should have. (according to service manual specs)

P.s. what made you decide you needed a new one? What symptoms?

[FPKites]

Turns 90 degrees then pulls out - pull hard. Channel locks work well.

[Vestjam]

Originally Posted by FPKites

Turns 90 degrees then pulls out - pull hard. Channel locks work well.

Agreed... Put your back into it.