I recently just bought a 97' Chevy Tahoe 5.7 and I want to drain and flush the radiator. The problem is I cant find the radiator draincock. I took off the platic coverings under my car and a metal bar is blocking my vision to where I think the draincock is at.That is where the radiator sits on.Does anyone know how to flush and drain the radiator.

 

Look on the driver's side bottom rear, just under the engine oil cooler fitting, if it has one. It should be on the opposite end of the tank from the radiator hose connector.