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Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Radiator >> On-Vehicle Cleaning

On-Vehicle Cleaning

  1. INSPECT FINS BLOCKAGE 
    1. If the fins are clogged, wash them with water or a steam cleaner. Dry with compressed air.
      NOTE:
      • If the distance between the steam cleaner and the core is too close, the fins may become damaged. Keep the following injection distance.
        Fig 1: Inspecting Fins Blockage
        G04975267Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard 

      INJECTION PRESSURE SPECIFICATION

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