Hyundai Tucson: CCWD Actuator- Installation

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Control - Fuel System / CCWD Actuator / CCWD Actuator- Installation


  • When installing the CVVD actuator the shaft gear do not fit properly, rotate the C W D actuator in both directions and installing it uaturally.

    (Do not impact when installating the component.)

  • Do not damage to the component when installating the cylinder head cover oil seal (A).



  • Install the component with the specified torques.
  • Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.


  1. Turn the ignition switch OFF.
  2. Connect the diagnostic tool to Data Link Connector (DLC).
  3. Turn the ignition switch ON.
  4. Select "Vehicle, Model Year, Engine, System".
  5. Select "CVVD Intake Adaption".

  1. Perform the "CVVD Learning" refer to the diagnostic tool.

Fuel Delivery System - Fuel Tank


     Fuel Delivery System - Fuel Tank

     Fuel Tank

    Component Location Fuel tank Canister Vapor hose Ventilaton hose Fuel filler hose Fuel tank air filter Leveling hose Fuel Level Sender (FLS) Fuel pump Fuel filter Fuel pressure regulator Fuel Perssure Sensor (FPS) High

     Release Residual Pressure in Fuel Line

    WARNING There may be some residual pressure even after "Release Residual Pressure in Fuel Line" work, so cover the hose connection with a shop towel to prevent residual fuel from spilling out before disconnecting any fuel connection.


     Vehicle break-in process

    By following a few simple precautions for the first 600 miles (1,000km) you may add to the performance, economy and life of your vehicle. Do not race the engine. While driving, keep your engine speed (RPM, or revolutions per minute) betwe

     High Beam Assist (HBA)

    High Beam Assist will automatically adjust the headlamp range (switches between high beam and low beam) depending on the brightness of detected vehicles and certain road conditions. Detecting sensor (Front view camera) [1] : Front view