Its the big funny looking manifold piece your air cleaner box hose is connected to. That piece then connects to the intake manifold, then that piece connects to the engine.
The gas tank on the 2006 Kia Sorento holds 21.1 gal..
The gas tank on the 2009 Kia Sorento holds 21.1 gal..
The gas tank on the 2008 Kia Sorento holds 21.1 gal..
The gas tank on the 2014 Kia Sorento holds 17.4 gal..
The gas tank on the 2003 Kia Sorento holds 21.1 gal..
The gas tank on the 2013 Kia Sorento holds 18.0 gal..
The gas tank on the 2005 Kia Sorento holds 21.1 gal..
The gas tank on the 2007 Kia Sorento holds 21.1 gal..
The gas tank on the 2012 Kia Sorento holds 18.0 gal..
The gas tank on the 2015 Kia Sorento holds 17.4 gal..
The gas tank on the 2004 Kia Sorento holds 21.1 gal..
The gas tank on the 2011 Kia Sorento holds 18.0 gal..