Question about 1992 Plymouth Acclaim

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Vapor leak went through inspection and failed due to a gas(vapor) leak. What do I do to correct this

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  • Plymouth Master
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Leaks in the evaporative emission control system may be difficult to find without a "smoke test". You or a shop could force smoke into the evap system and watch where a leak would show up. Could be anywhere between the charcoal canister and the fuel tank. Is your gas filler cap still good? That is one place to check. Trace the evap lines under the car and look for deteriorated rubber lines, loose connections, etc. Check the canister for all lines being connected and tightly fitted.
I hope you find it. If not, have the smoke test done. I hope it wouldn't cost too much. Not sure of the cost.

Posted on Jan 02, 2013

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What is code po440? What can i do to fix it


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.
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

Nov 14, 2014 | Cars & Trucks

1 Answer

Error code P1457 2000 Honda Odyssey


this code is sometimes set because of a loose gas cap or a leaking gas cap. the code is set when the fuel vapor management system detects a leak.

Feb 27, 2013 | Honda Odyssey Cars & Trucks

1 Answer

Engine light has been on, changed gas cap and it went off for 2 days. went to auto parts store and they put the little gauge on it and it read that i have a small evap leak. Need to know what else it could...


The problem may be something that needs a shop to fix.
The computer vents the fumes from the gas tank to the vapor canister several times while the engine is running.
Any part of the EVAP system can leak, including the vent valve on top of the gas tank.
A shop would do a visual inspection then a smoke test where they induce smoke into the tank and check for leaks.

Feb 21, 2013 | Chrysler Sebring Cars & Trucks

1 Answer

Gas vapor leak


The EVAP emissions system recovers vapor from the fuel tank, stores them in the charcoal canister, and burns them off whe. The engine is running. It would be impossible to tell ou what part needs to be replaced because it cold be anything from the filler kneck, to the purge valve, or the charcoal canister. The code that was in the compute gave the clue as to what the problem was. Your mechanic than found the diagnostic information and proceeded to trouble shoot the issue until the cause of the code was found. IMO, any mechanic that tells you not to worry about something on your car is not worth patronizing. They should have educated you on what the system does, what's affected by the system not working correctly, the consequences of not repairing the problem, and potential future issues if the problem where not corrected. You can then decide what is important and what is not important!

Aug 19, 2012 | 2002 Kia Spectra

2 Answers

My 2007 Chevy Avalanche failed the emission test with the code of P0455 what is the problem?


It is probably the evap vent valve. A new vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
I hope this helps.

Jul 02, 2011 | Chevrolet Avalanche Cars & Trucks

5 Answers

I just got a code po440 and I dot no where to start it seems like its harder to start the engine and it seems like I get a gas smell sometimes


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

Hope helps.

May 23, 2011 | 1997 GMC Jimmy

2 Answers

Check engine light came on went to auto zone said it was gas cap. Bought new gas cap. reset engine light. two days later check engine light is back on. what next?


Hi, if the code was P0455, there are other possible reasons. The computer fuel tank pressure sensor has detected a leak which could also be in the vapor canister, or the hose from the canister to the purge valve, or the purge valve itself may be leaking. Please inspect the system for these leaks. I may be able to provide some pics of these parts if you tell me your model, year, and engine info.

Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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 p0455 most likely means one or more of the following has happened:

  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • Other leak or damaged piece in EVAP system
Possible Solutions With a p0455, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, and/or
  • Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

May 14, 2011 | Chevrolet 2500 Cars & Trucks

1 Answer

Code po442 small leak


Look carefully at all of the vapor recovery lines that run from the gas tank to the engine for anything damaged or loose. Look at the fill pipe to the tank. There is a special tool that pressurizes the system to find leaks, so if all else fails you may have to pay a shop to find it.

Dec 06, 2009 | 1999 Pontiac Grand Am GT

1 Answer

I have a 2001 grand am se p0440 code comes up


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.
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

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

Feb 20, 2009 | 2001 Pontiac Grand Am SE

1 Answer

My taurus failed due to code p0442 ecap emiss ctl sys leak detected (small leak)


    Continuous Memory Diagnostic Trouble Code (DTC) P0442 indicates that a fuel vapor leak has been detected [as small as 0.10 cm (0.04 inch)] in the Evaporative Emission (EVAP) system.
    Note: Prior to performing the following diagnosis inspect the Canister Vent Solenoid (CV) for contamination. A situation may exist where contamination holds open the Canister Vent (CV) solenoid enough to set DTC P0442 and also plugs the port to atmosphere enough to keep system from being vented quickly.
    • After market parts and accessories nonconforming to the EVAP system specifications.
    • Damaged, cross threaded or loosely installed fuel filler cap.
    • Small holes or cuts in fuel vapor hoses/tubes (EVAP canister tube, EVAP canister outlet tube or EVAP return tube) in the EVAP system.
    • Loose fuel vapor hose/tube connections to EVAP system components.
    • EVAP system component [EVAP canister purge valve, fuel tank pressure (FTP) sensor, canister vent (CV) solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly] seals leaking.
    • CV solenoid partially open when commanded closed.
    • EVAP canister leaking.
  • Check for presence of fuel filler cap.
  • Verify that the CV solenoid is properly seated on the EVAP canister (if possible).
  • Visually inspect for cut or loose connections to fuel vapor hoses/tubes in following locations:
    • EVAP canister to EVAP canister purge valve.
    • EVAP canister to fuel vapor vent valve assembly.
    • fuel vapor control valve tube assembly to fuel tank (if applicable).

Jun 26, 2008 | 1997 Ford Taurus

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