Question about 2002 GMC Envoy

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Failed inspection P0440 - 2002 GMC Envoy

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HI, I the DTC P0440 means you have a problem in the evaporative emission system. The most common cause of this failure is a loose or poorly sealing gas cap. Other causes can be loose or broken vacuum and vent lines going to the vapor canister for the EVAP system. Check the gas cap first its the cheaper of the fixes. Good luck

Posted on Aug 25, 2010

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This is an evap emission system problem. Have you tried changing your gas cap? This would be the first thing to try.
Thank you,
Lee

Posted on Aug 25, 2010

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1 Answer

P0440 code with check gas cap message how do I fix this


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

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 10, 2016 | 2000 Cadillac Seville

1 Answer

What is code p0440


EVAP Emission Control System Malfunction.
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

Sep 29, 2011 | 1997 Oldsmobile Cutlass Supreme

1 Answer

I received an engine code P0440 on a 2002 Tahoe today and my husband is inspecting the hoses, etc. and found the solenoid is installed very loose on the engine. Is this normal?


This indicates that a part of the EVAP control system is no longer fuctioning correctly.
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.
  • -----------
Evap purge solenoid should be clean and tight.Also inspect for damaged or disconnected hoses around the Evap purge solenoid. -------------- This will help.Thanks.Helpmech.

Dec 16, 2010 | Chevrolet Tahoe Cars & Trucks

1 Answer

SUZUKI VITARA 2001 4L CODE P0440


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

Dec 10, 2010 | 2001 Suzuki Vitara

2 Answers

P0440 code


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

Dec 08, 2010 | 2004 Lexus LS 430

1 Answer

I am getting P0440 EVAP Control System Malfunction for my Buick Century 1999 and need to know how to fix it thanks


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

Keep us updated.

Nov 15, 2010 | 1999 Buick Century

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

What does code p0440 mean??what can i do to fix it??


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, inspect, clean the sealing gasket and reinstall the gas cap, clear the code, and drive for a week and see if the codes come back. If the code comes back, have the gas cap itself checked. If all is ok, then move on to the rest of the possible fixes. 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 06, 2009 | 2003 Pontiac Sunfire

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

2 Answers

Obd code p0440 for check engine light on 2000 Toyota Corolla


p0440 code means that the evap system has a leak. This could be caused by a bad or improperly installed gas cap. Either that or the purge solenoid has failed or the canister is plugged and not working properly.

Nov 15, 2008 | 2001 Toyota Corolla

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