Question about 1999 Pontiac Grand Am GT

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Engine code p0440,replaced gas cap and purge solenoid.still getting 0440 code

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Check your evap system..its usually a bad vacum line

Posted on Sep 05, 2008

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Error code 0440 on a 2002 buick custom


Go to an auto parts store and get a Haynes repair manual for car it will have the code meanings for any and all codes on that vehicle. Only bad thing is the book cost around $30 maybe you will get lucky and one will be open and you could take a peak inside.

Mar 23, 2015 | 2002 Buick Century

1 Answer

P0440 error 2001 Aztek


Could be the gas cap,there are also canister purge and canister vent solenoids.The fuel system gets tested for vapor leaks when cold so clean the gas cap surface,always turn at least 3 clicks when putting cap on and have a parts store erase the code to see if that takes care of it.

Sep 06, 2012 | 2001 Pontiac Aztek

1 Answer

It is coming up with p440 code


P0440 - Evaporative Emission Control System Malfunction

This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

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:
* 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
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks

Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456

Keep us updated and remember to rate this answer..

Feb 01, 2011 | Chevrolet Venture Cars & Trucks

1 Answer

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
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

Jan 21, 2011 | 2002 Oldsmobile Alero

2 Answers

Service engine soon code po440 2002 chevy trailblazer


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
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
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks
Get a new gas cap first to try.
thanks

Jul 30, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

What p0440 mean in the cars


P0440 OBD-II - Evaporative Emission Control System Malfunction


What does that mean?
This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.



Symptoms:
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook 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:
  • 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
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

Hope helps (remember rated this).

Jul 05, 2010 | 1999 Chevrolet Blazer

2 Answers

I have a 2004 Chrysler Town and Country and my


P0440:
  • 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
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

  • P0441:
    Bad vacuum switch
    • Broken or damaged EVAP line or canister
    • Open in PCM purge command circuit
    • Open or short in Voltage feed circuit to Purge Solenoid
    • Faulty purge solenoid
    • Restriction in EVAP solenoid, line or canister
    • Corrosion or resistance in purge connector
    • Bad PCM

    Dec 21, 2009 | 2004 Chrysler Town & Country

    3 Answers

    Check engine light came on, says its a evaporative emission system, code# P0440, what is that?


    What does that mean?
    This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

    Possible 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:
    • 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
    • Check and/or replace the purge valve
    • Have a professional use a smoke machine to detect leaks
    HTH,

    Mike...

    Dec 04, 2009 | 1996 Chevrolet Cavalier

    1 Answer

    Engine light is on, i got a code P0440 evaporative emission system, and wander what could it be.


    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
    • 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
    • Check and/or replace the purge valve
    • Have a professional use a smoke machine to detect leaks

    Sep 19, 2009 | 2003 Chevrolet Impala

    1 Answer

    Dodge ram 4.7 p0440


    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:
    • 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
    • Check and/or replace the purge valve
    • Have a professional use a smoke machine to detect leaks

    Jun 02, 2009 | 2004 Dodge Ram 1500

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