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Home >> Acura >> 2007 >> CSX Type-S >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Radiator Cap Test
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Radiator Cap Test

  1. Remove the radiator cap (A), wet the seal with engine coolant, then install it on the pressure tester (B) (commercially available).
    Fig 1: Removing Radiator Cap
    G06264409Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Apply a pressure of 93-123 kPa (0.95-1.25 kgf/cm2 , 14-18 psi).
  3. Check for a drop in pressure.
  4. If the pressure drops, replace the cap.
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