P0442

2017-10-10

Description:

  • The fault code P0442 indicates that there is a small leak in the evaporative emission control system. This can cause an increase in emissions and may lead to the illumination of the check engine light.

Possible Symptoms:

  • Illuminated check engine light

  • Increased emissions

  • Strong fuel odor

  • Failed emissions test

Possible Causes:

  • Loose or damaged gas cap

  • Cracked or damaged EVAP system hoses

  • Faulty EVAP canister or purge valve

  • Leaking fuel tank or fuel filler neck

Related Parts:

  • Evaporative Emission (EVAP) System: The EVAP system prevents petrol vapors from escaping into the atmosphere from the fuel tank and fuel system. Problems in this car's flow valve will lead to fuel loss

Possible Solutions:

  • Ensure gas cap is tightened properly or replace if damaged

  • Inspect EVAP system hoses for cracks or damage and replace as necessary

  • Replace faulty EVAP canister or purge valve

  • Inspect fuel tank and fuel filler neck for leaks and repair as necessary

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