• The fuel evaporative system (EVAP) controls emission by housing vapors from evaporated fuel and sending them back to the fuel tank to be reused. The cost for EVAP system repair ranges between and . The labor alone will cost somewhere between and , while parts will run somewhere between and .

  • With a P0442, the most common DIY repair is to:

    1. Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
    2. Otherwise, replace the gas cap (we recommend an OEM original part, not aftermarket part), or.
    3. Visually inspect the EVAP system for cuts/holes in tubes/hoses.

    Furthermore, what causes a po442 code? P0442 indicates that you have a small leak in the evaporative emission system. Many times this is caused by a loose or faulty fuel cap. The P0442 error code is an evaporative emission control code and is an indication of a small leak being detected in the evaporative emission system.

    Subsequently, one may also ask, is it OK to drive with EVAP leak?

    While it is safe to drive with an EVAP leak, you should not drive your vehicle for long while you do have a leak. If your Check Engine Light comes on, check to make sure the gas cap on your vehicle is securely fastened. If the light is still on, take it to a mechanic so the leak can be fixed.

    Does p0442 clear itself?

    Once you have ensured that the gas cap is closed tight or the vent and purge valves are operating optimally, the error code P0442 will normally clear by itself after a while. If this does not work you may need to disconnect the battery or use a diagnostic tool to clear the error.

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