Likely it is the clips on the fuel venting system under the hood. This is a common problem that all Sportages will eventually suffer from, if in a colder climate. The spring clips will be replaced with screw down clips. This is a very easy job.
Could be the Purge Control Valve.
The 2010 Kia Sportage is a gas-powered vehicle.
The 2014 Kia Sportage is a gas-powered vehicle.
The 2009 Kia Sportage is a gas-powered vehicle.
The 2007 Kia Sportage is a gas-powered vehicle.
The 2001 Kia Sportage is a gas-powered vehicle.
The 2005 Kia Sportage is a gas-powered vehicle.
The 2013 Kia Sportage is a gas-powered vehicle.
The 2012 Kia Sportage is a gas-powered vehicle.
The 2002 Kia Sportage is a gas-powered vehicle.
The 2006 Kia Sportage is a gas-powered vehicle.
The 2011 Kia Sportage is a gas-powered vehicle.