Driver's side front of the radiator, inline with the drain at the bottom of the radiator.
It screws out.
There should be a radiator drain on bottom right side. turn it until it stops then pull out on it.
Remove the plug at the bottom or the rear of the radiator or remove the lower radiator hose
Try in housing at the engine end of the upper radiator hose
HOW TO REPLACE A STARTER ON A 1998 CHEVY MALIBU
fuel systemfor 1998 chevy malibu
Open plug at bottom or rear bottom of radiator
On my 1997 & 1998 Luminas, the drain is on the lower drivers side of the radiator. Be careful, they break easily. If it is alredy broken, you will have to use the lower radiator hose.
either a 14 or 15 millimeter.
drivers side on bottom of radiator it is plastic and on mine it is light green
It will be on the inside right bottom side of radiator. HARD TO SEE.
Look at the bottom of the radiator--maybe in the middle or on one side. It may be easier to remove to lower hose to drain.