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Home >> Hyundai >> 2004 >> Sonata GLS >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> 2.7L 6-Cylinder Engine >> Cooling System >> Radiator Cap >> Inspection

Radiator Cap: Inspection

  1. Check the radiator cap for damage, cracks or weakening.
    Fig 1: Inspecting Radiator Cap For Weakening
    G00752344Courtesy of HYUNDAI MOTOR CO.
  2. Connect the tester to the radiator cap.
  3. Increase the pressure until the indicator of the gauge stops moving.
  4. Replace the radiator cap if the reading does not hold steady for about 10 seconds.
    Fig 2: Testing Radiator Cap
    G00752345Courtesy of HYUNDAI MOTOR CO.
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