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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling >> Radiator >> On-Vehicle Cleaning

On-Vehicle Cleaning

  1. INSPECT RADIATOR ASSEMBLY 
    1. Check that the radiator and condenser are not blocked with leaves, dirt, or insects. Clean the hose connections.

      If the fins are blocked, wash them with water or a steam cleaner.

      Fig 1: Identifying Radiator Assembly
      G05289347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • If the distance between the steam cleaner and core is too close, the fins may be damaged.
      • Keep the following injection distance.

        Standard injection distance 

        INJECTION PRESSURE SPECIFICATION

        Injection Distance Injection Pressure
        300 mm (11.81 in.) 2,942 to 4,903 kPa (30 to 50 kgf/cm2 , 427 to 711 psi)
        500 mm (19.69 in.) 4,903 to 7,845 kPa (50 to 80 kgf/cm2 , 711 to 1,138 psi)
      • If the fins are bent, straighten them with a screwdriver or pliers. 
      • Never apply water directly onto the electric components. 
    2. Dry the fins with compressed air.