Altima V6-3.5L (VQ35) (2003)
4. Blow air into the back side of radiator core, with the air hose pointed vertically downward.
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Use compressed air lower than 490 kPa (5 kg/cm2, 71 psi) and keep distance more than 30 cm (11 .8 inch).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.