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Radiator Cap Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Honda Odyssey, 2003 Honda Odyssey, 2002 Honda Odyssey, 2001 Honda Odyssey, and 2000 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the radiator cap (A), wet its seal with engine coolant, then install it on the pressure tester (B) (commercially available).
    Fig 1: Removing Radiator Cap
    G01505364Courtesy 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.