Camry CE Sedan 4-Door L4-2164cc 2.2L DOHC MFI (1997)
Radiator Cap: Testing and Inspection
ON-VEHICLE INSPECTION
1. REMOVE RADIATOR CAP
CAUTION: To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and
steam can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE:
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If the radiator cap has contaminations, always rinse it with water.
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Before using a radiator cap tester, wet the relief valve and pressure valve with engine coolant or water.
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When performing steps (a) and (b) below, keep the tester at an angle of over 30° above the horizontal.
a. Using a radiator cap tester, slowly pump the tester and check that air is coming from the vacuum valve.
Pump speed: 1 push/(3 seconds or more)
NOTICE: Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the radiator cap.
b. Pump the tester, and measure the relief valve opening pressure.
Pump speed: 1 push within 1 second
NOTICE: This pump speed is for the first pump only (in order to close the vacuum valve). After this, the pump speed can be reduced.
Standard opening pressure: 74 - 103 kPa (0.75 - 1.05 kgf/cm2, 10.7 - 14.9 psi)
Minimum opening pressure: 59 kPa (0.6 kgf/cm2, 8.5 psi)
HINT: Use the tester s maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radiator cap.
