Altima V6-3.5L (VQ35) (2003)
Radiator Cap: Testing and Inspection
CHECKING RADIATOR CAP
1. Pull the negative-pressure valve to open it and check that it closes completely when released.
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Check that there is no dirt or damage on the valve seat of the radiator cap negative-pressure valve.
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Check that there are no abnormalities in the opening and closing conditions of the negative-pressure valve.
2. Check radiator cap relief pressure.
Standard: 78 - 98 kPa (0.8 - 1.0 kg/cm2, 11 - 14 psi)
Limit: 59 kPa (0.6 kg/cm2, 9 psi)
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When connecting the radiator cap to the tester, apply water or coolant to the cap seal surface.
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Replace the radiator cap if there is an abnormality in the negative-pressure valve, or if the open-valve pressure is outside of the standard
values.