Fuel Tank: Inspection

WARNING: This page is about a different car, the 2004 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.

Check the hoses and the pipes for cracks or damage.
Check the fuel tank cap for proper operation.
Check the fuel tank for deformation, corrosion or cracking.
Check the fuel tank inside for dirt or contamination.
Check the in-tank fuel filter for damage or restriction.
Test the two-way valve for proper operation.
Using a vacuum hand pump, check the operation of the two-way valve.

Fig 1: Two-Way Valve Operational Check Table
Courtesy of HYUNDAI MOTOR CO.

Fig 2: Checking Two-Way Valve Using A Hand Vacuum Pump
Courtesy of HYUNDAI MOTOR CO.