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Radiator Cap: Inspection

  1. Check the radiator cap for damage, cracks or weakening.
    Fig 1: Inspecting Radiator Cap
    G01153373Courtesy of HYUNDAI MOTOR CO.
  2. Connect the tester to the radiator cap.
  3. Increase the pressure until the indicator stops moving.
  4. Replace the radiator cap if the reading does not hold steady for about 10 seconds.
    Fig 2: Pressure Testing Radiator Cap
    G01153374Courtesy of HYUNDAI MOTOR CO.
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