2.0L models and all Sportage models have a returnless fuel system. This system uses a fuel filter that is an integral component of the fuel pump, which is mounted in the fuel tank and is not normally serviced. The fuel filter is mounted under the vehicle on the right side, near the gas tank. Relieve the fuel system pressure, then disconnect the cable from the negative terminal of the battery. Raise the vehicle and support it securely on jackstands. Inspect the fittings at both ends of the filter to see if they're clean. If more than a light coaling of dust is present, clean the fittings before proceeding. Disconnect the fuel lines at the fuel filter. To disconnect the quick-connect fittings from the fuel filter, depress the two release buttons on the sides of the fitting. Detach the lines, one at a time; be prepared for fuel spillage. After the lines are detached, check the fittings for damage and distortion. If they were damaged in any way during removal, new ones must be used when the lines are reattached to the new filter. Also inspect the condition of the 0-ring inside the fitting. If it's cracked, torn or otherwise deteriorated, replace it. Remove the fuel filter from the mounting clamp, while noting the direction the fuel filter is installed. Install the new filter in the same direction. Carefully push each hose onto the filter until it's seated against the collar on the fitting. Pull on the hoses to make sure the fittings have completely engaged with the pipes - if they come off, the hoses could back off the filter and a fire could result! Start the engine and check for fuel leaks.