Hyundai Tucson: Evaporative Emission Control System- Installation
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Emission Control Syste / Evaporative Emission Control System / 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
Canister → Fuel Tank
Canister → Intake Manifold
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.
- Lift the vehicle.
- Remove the rear-left wheel & tire and wheel house cover.
- Separate the ventilation hoses (A).
- Remove the fuel tank air filter (B) after loosening the mounting bolts (A).
- Remove the ventilation hose (A) from the fuel tank air filter.
Installation
- Install in the reverse order of removal.
Description
A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which would seal the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.
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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
GPF Regeneration
This procedures is to forcibly regenerate the GPF with scan tool when the GPF
doesn't have been regenerated during driving. For
example, if the vehicle has repeated "Low speed driving" or "Short distance
driving", the GPF
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Connector assembly status test- Troubleshooting
Connector assembly status test
Disconnect the ignition coil connectors (A) and reinstall it.
Test for changing position of each ignition coil
Ignition coil w/ misfire code
Ignition coil w/o misfire code
WARNING
Do not move wi
Operation and Leakage Check
Inspection
Brake Booster (A)
(1) Check brake operation by applying the brakes during a test drive. If the
brakes do not work properly, check the brake
booster. Replace the brake booster as an assembly if it does not work properly
or i
Information
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