It should not matter as one is pressure and the other is return from the transmission oil cooler.
The 2001 Chevrolet Malibu has a 4-speed automatic.
The 2009 Chevrolet Malibu has a 4-speed automatic.
The 2002 Chevrolet Malibu has a 4-speed automatic.
The 2008 Chevrolet Malibu has a 4-speed automatic.
The 2006 Chevrolet Malibu has a 4-speed automatic.
The 2004 Chevrolet Malibu has a 4-speed automatic.
The 2005 Chevrolet Malibu has a 4-speed automatic.
The 2003 Chevrolet Malibu has a 4-speed automatic.
The 2007 Chevrolet Malibu has a 4-speed automatic.
The 2010 Chevrolet Malibu has a 4-speed automatic.
The Chevrolet Malibu radiator drain plug can be found on the right side of the radiator. The drain plug will be at the bottom of the radiator.
The 2014 Chevrolet Malibu has a 6-speed shiftable automatic.