Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHYUNDAI2005ELANTRA GT, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL SYSTEMDTC TROUBLESHOOTING PROCEDURESDTC P0442: EVAP. EMISSION SYSTEM-LEAK DETECTED (SMALL LEAK)CANISTER CLOSING VALVE (CCV) LINE INSPECTION
2005 Hyundai Elantra GT, 4D Sedan, Automatic
Canister Closing Valve (CCV) Line Inspection
2005 Hyundai Elantra GT, 4D Sedan, AutomaticSECTION Canister Closing Valve (CCV) Line Inspection
- Return vehicle to original condition
- Ignition "OFF"
- Disconnect the hose connecting Canister Closing Valve(CCV) to canister
- Blow air to the canister side of the valve and verify air escapes to the air filter side.
- Ignition "ON"
- Install scantool and select "CANISTER CLOSE VALVE" on the Actuation Test mode
- Activates "CANISTER CLOSE VALVE" by pressing "STRT(F1)" key
- Blow air into hose and verify air dose not escape.
- Repeat this procedure 4 or 5 times to ensure CCV reliability.
- is CCV working properly?
YES
- Go to FUEL TANK PRESSURE SENSOR INSPECTION procedure
NO
- Check for cracks or damage in hose connecting CCV and canister. Repair or replace as necessary.
- If OK, replace CCV. If CCV was stuck closed, inspect all lines and canister for liquid fuel. Replace any contaminated components and blow out lines and go to VERIFICATION OF VEHICLE REPAIR procedure.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.