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Home >> Kia >> 2005 >> Optima EX, 2.7 8 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System/Fuel System - 2.7L >> Fuel Delivery System >> Fuel Tank >> Inspection
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Fuel Tank: Inspection

  1. Check the hoses and the pipes for cracks or damage.
  2. Check the fuel tank cap for proper operation.
  3. Check the fuel tank for deformation, corrosion or cracking.
  4. Check the fuel tank inside for dirt or foreign material.
  5. Check the in-tank fuel filter for damage or restriction.
  6. Test the two-way valve for proper operation.
  7. Using a vacuum hand pump, check the operation of the two-way valve.
Fig 1: Checking 2-Way Valve (1 Of 2)
G00328622Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: Checking 2-Way Valve (2 Of 2)
G00328624Courtesy of KIA MOTORS AMERICA, INC.