Hyundai Elantra (CN7): Emission Control System / Components and components location

Components Location

1. Canister
2. Purge control solenoid valve (PCSV)
3. Fuel Tank Air Filter
4. Catalytic converter (WCC)
5. Catalytic converter (UCC)

1. Canister
2. Purge control solenoid valve (PCSV)

3. Fuel Tank Air Filter
4. Catalytic converter (WCC)

5. Catalytic converter (UCC)



    DescriptionEmissions Control System consists of three major systems.• Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere.

    Troubleshooting Symptom Suspect Area Engine will not start or stuggle to startVapor hose damaged or disconnectedEngine stuggle to startMalfunction of the Purge Control Solenoid ValveRough idle or engine stallsVapor hose damaged or disconnectedMalfunction of the PCV valveRough idleMalfunction of the Evaporative Emission Control SystemExcessive oil consumptionPositive crankcase ventilation line clogged

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Compressor oil

    Repair procedures Oil Specification1.The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.2.Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Receiver-Drier

    Repair procedures Replacement1.Remove the condenser.2.Remove the cap (A) on the bottom of the condenser with a L wrench. Tightening torque : 9.81 - 14.71 N.m (1.0 - 1.5 kgf.m, 7.2 - 10.8 lb-ft) 3.Remove the receiver-drier (A) from condenser using a long nose plier.

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