FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Cap Testing

CAP TESTING





1. Remove the radiator cap, wet its seal with engine coolant, and install it to a pressure tester.
2. Apply a pressure of 93 - 123 kPa (0.95 - 1.25 kgf/cm2, 14 - 19 psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.