Hyundai Tucson: Evaporative Emission Control System - Removal
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Emission Control Syste / Evaporative Emission Control System / Evaporative Emission Control System - Removal
Removal
WARNING
- Be careful not to damage the parts located under the vehicle (floor under cover, canister, fuel tank) when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")
- Turn the ignition switch OFF and disconnect the battery (-) terminal.
- Remove the floor under cover (A).
Tightening Torque : 7.9 - 11.8 N*m (0.8 - 1.2 kgf*m, 5.8 - 8.7 lb*ft)

- Separate the ventilation hose (A).

- Disconnect the vapor hose quick-connector (A).

- Remove the canister (A) after loosening the mounting nuts.
Tightening Torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.7 - 8.7 lb-ft)

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Evaporative Emission Control System- Installation
Install in the reverse order of removal.
Inspection
Check for the following items visually.
Cracks or leakage of the canister
Loose connection, distortion, or damage of the vapor hose/tube
Canister→ Atmosphere
Caniste
Exhaust Emission Control System - Description
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine
modifications and the
addition of special control components.
Modifications to the combustion chamber, intake manifold, camshaft and ignition
system consist the
basic
SEE MORE:
Cylinder Block/ Disassembly/ Inspection/ Reassembly
WARNING
Use fender covers to avoid damaging painted surfaces.
To avoid damage, unplug the wiring connectors carefully while
holding the connector portion.
WARNING
Mark all wiring connector and hoses to avoid misconnection.
To releas
Multifunction Switch Inspection
Check for continuity between the terminals in each switch position as
shown below.
Inspection (With Diagnostic Tool)
In the body electrical system, failure can be quickly diagnosed by using
the vehicle diagnostic system (d
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual