Question about 2004 Chrysler Sebring

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Code 0440 or P0440

My car has a code 0440 what does that mean

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  • yadayada
    yadayada May 11, 2010

    P0440 Evaporative Emission Control System Malfunction

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P0440 is typically an evaporative emissions code. What that means is gas in your tank evaporates and there is a system (evap system) set in place to manage those evaporations. This system monitors gas tank pressures and releases pressure accordingly. By monitoring pressures it can sometimes be set by leaving the gas cap a little loose after filling up. So the first thing I would check is make sure your cap is tight and get that code cleared out somewhere like a local parts store for free and see if it comes back on.

Posted on Apr 18, 2009

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Posted on Jan 02, 2017

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Well my light is on had that test done on it and the code is 0440 so could you tell me what actually that is.


A code P0440 could mean one or more of the following has happened:

  • The gas cap is not installed or working properly
  • The purge solenoid has failed
  • The canister is plugged and not working properly
Possible Solutions

With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

  • Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
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  • Have a professional use a smoke machine to detect leaks

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Hello i can assist you Your PO-0440 code explanation is a evaporative emission control system malfunction.

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Symptoms You likely won't notice any drivability problems.
Causes A code P0440 could mean one or more of the following has happened:
  • The gas cap is not installed or working properly
  • The purge solenoid has failed
  • The canister is plugged and not working properly
Possible Solutions With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
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  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

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