drivers side of radiator on the bottom inside pointing to where driver sits
At the bottom of your radiator on usually the passenger side.
Is there a drain plug on a 2005 Buick century
Open the petcock or remove the lower radiator hose from the radiator.
bottom of the radiator either on the right or left.
Yes.
The radiator on a 98 Buick Century is flushed by turning the petcock to drain the coolant. Water is then flushed through the system until all contaminants are removed.
The flush valve for the radiator on a 1999 Buick Century is located on the bottom of the radiator near the vehicle's frame. When it is loosened, the coolant will slowly drain from the vehicle.
You can find the 1991 Buick Skylark radiator drain plug on the bottom of the radiator. The radiator drain plug will be in the center of the radiator bottom.
If you do not see one on the bottom of the radiator one side or the other then it does not have one. You drain the radiator by removing the lower radiator hose.
where is the drain plug for the radiator on a 1992 buick regal custom
A radiator shop will do that for you. Don't try to do it yourself. Most radiator shops don't charge that much if you take the radiator out yourself.
I'm assuming by petcock you mean the drain on the radiator. If it has one (which it should), It's on the bottom, rear, drivers corner of the radiator.