By the time the 3800 series debuted, all were equipped with AC
low pressure side on a buick skylark with a 2.4 engine is by the compresor. you get to it from under the car. left side, front side of engine.
The Buick that was supercharged was called the Ultra. On the engine there is another unit mounted on top of the engine. It is driven by a separate belt from the drive shaft. The engine without the supercharger has only one serpentine belt.
The 2008 Buick LaCrosse has a V6 engine.
The 2009 Buick LaCrosse has a V6 engine.
The 2001 Buick Regal has a V6 engine.
The 2004 Buick Regal has a V6 engine.
The 2003 Buick Regal has a V6 engine.
The 2005 Buick LaCrosse has a V6 engine.
The 2007 Buick LaCrosse has a V6 engine.
The 2011 Buick Enclave has a V6 engine.
The 2002 Buick Regal has a V6 engine.
The 2014 Buick Enclave has a V6 engine.