Rodeo S 2WD L4-2.2L (1999)
Measure the valve opening pressure of the pressurizing valve with a radiator filler cap tester.
Replace the cap if the valve opening pressure is outside the standard range.
Valve opening pressure 93.3 - 122.7 kPa (13.5 - 17.8 psi)
Cap tester: J-24460-01
Adapter: J-33984-A
Check the condition of the vacuum valve in the center of the valve seat side of the cap. If considerable rust or dirt is found, or if the valve seat cannot
be moved by hand, clean or replace the cap.
Valve opening vacuum 1.96 - 4.91 kPa (0.28 - 0.71 psi)
Radiator Core
1. A bent fin may result in reduced ventilation and overheating may occur. All bent fins must be straightened. Pay close attention to the base of the
fin when it is being straightened.
2. Remove all dust, bugs and other foreign material.
Flushing the Radiator
Thoroughly wash the inside of the radiator and the engine coolant passages with cold water and mild detergent. Remove all sign of scale and rust.
Cooling System Leakage Check
Use a radiator cap tester to force air into the radiator through the filler neck at the specified pressure of 196 kPa (28.5 psi) with a cap tester:
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Leakage from the radiator
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Leakage from the coolant pump
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Leakage from the water hoses
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Check the rubber hoses for swelling.
Cap tester: J-24460-01
Adapter: J-33984-A
