p0442
Moderate
Hyundai · SUVs
EVAP System Leak Detected (Small Leak)
Quick Answer
Error code P0442 on your Hyundai SUVs means: EVAP System Leak Detected (Small Leak). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Loose or missing fuel cap
  2. EVAP hose crack or disconnect
  3. Carbon canister leak
  4. Purge valve malfunction
How to Fix It
1
Check fuel cap for proper sealing and cracks
2
Inspect all EVAP hoses for damage or disconnection
3
Test purge control valve operation
4
Use smoke test to identify leak location
5
Replace damaged components as needed
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fuel cap
EVAP hoses
Purge control valve
Related Error Codes
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