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Installation (RX300)

  1. Using compressed air, clean all passages. Clean throttle body gasket surfaces. Install NEW gaskets, "O" rings and throttle bodies. See Figure. Tighten throttle body screws to specification. See TORQUE SPECIFICATIONS .
  2. To complete installation, reverse removal procedure. Fill cooling system with proper mix of water and coolant. If throttle body assemblies were removed from intake air control valve, throttle body lever adjustment may be necessary. See THROTTLE BODY LEVER ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article.