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Idiomas disponibles
TESTING THE COOLING SYSTEM
Important:
A. Never open a hot pressurized cooling system!
B. The recommended pressure should never be exceeded for the vehicle! This can rupture the radiator and/or
hoses.
C. Never exceed the 30-pound limit, for this may cause serious damage.
D. Always lubricate the cap seal with antifreeze before testing.
1. Remove the pressure cap cautiously once the car has cooled.
2. Check that there is the correct amount of coolant in the radiator and overflow bottle.
3. Because the pressure released by the pressure cap passes through the overflow tube, an obstructed tube
(or overflow bottle) may cause the cooling system to work improperly. Therefore, the overflow tube and
bottle should be checked for dents or other obstructions. This can be done by visually checking for dents or
any other obstructions and by running a wire through the tube making sure it is clear.
4. Clean the inside of the filler neck, make sure the lower inside sealing seat is free of dirt, nicks, imperfec-
tions, or bumps on any kind.
5. Make sure the cams on the outside of the filler neck are not bent because this can affect the sealing of
the pressure cap and the tester seal will be affected.
6. The cooling system tester includes the most common radiator and cap adapters. If the vehicle you are
testing requires a different adapter visit www.motorad.com or call 1-866-690-4537 to identify the correct
adapter for your vehicle.
7. Rotate the pressure valve release handle on the top of the tester head clockwise until it is parallel to the
tester head handle before attaching the pressure tester head to the radiator or adapter. By compressing the
pressure valve, the installation of the pressure head to the adapter is easier. Release the pressure valve by
rotating the pressure valve release handle clockwise. This seals the tester head to the lower sealing seat of
the adapter neck. You should feel the valve snap into place.
8. Pump the tester until the indicator hand on the gauge reaches the end of the color band of the suitable
pressure. (To determine the pressure for the system being tested, check specifications in the service
manual).
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