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Check engine light on, code 0449, i have replaced the vent solinoid

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Kindly Tell me the Year, Make and Model of the Car?


Posted on May 13, 2010

  • domman1570 May 13, 2010

    it is a 2007 Chevy Malibu

  • taran_2005
    taran_2005 May 13, 2010

    Thanks for your response!!

    Download the Diagnostic troubleshoot guide for this Code from ;-

    Let me know,if needed further assistance.

    Hope i helped you.

    Thanks for using ' Fixya ' and have a nice day!!



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1 Answer

Is there a fuse for the vent solenoid? getting P0449 code but vent is good.

code p 0449 refers to evaporative emission (EVAP)system, vent valve ---circuit malfunction===causes --wiring ---EVAP cannister purge valve ---ECM
check the wiring for breaks , bad connections
replace the purge valve
the vent valve is part of the purge system of the EVAP system( fuel system)

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What is code P0449 for 1999 oldsmobile silhouette?

code 0449 evaporative emission control system vent valve solenoid circuit malfunction check your fuses as well as connections and power going to the solenoid see manual for location of valve

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Check engine light on steady, and codes 0445 & 0449 from computer

The codes you list are generic and unfortunately the descriptions provided are too. Do a bit of research into the applicalbe parts and you'll likely find a trend of malfunctions and repairs for your particular model year. After that it's time to either get greasy or see the mechanic, doesn't sound like it will be too bad, though.

P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted

P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

Hope it helps,

Jun 08, 2011 | Pontiac Montana SV6 Cars & Trucks

1 Answer

Checked computor and got code 0449. check engine lite stays on . what can i do to check what the proplem is

PO449- Evap Code for Vent Valve/Solenoid
Circuit Malfunction

Without a scan tool and smoke machine,
your left with trying to find the valve and replace it

That is a bad practice, because you don't know
it failed

Best left up to the pros at your local repair shop

Apr 21, 2011 | Buick Rendezvous Cars & Trucks

1 Answer

I have a 04 buick rend and i'm getting the p 0449 code how can i find out what it is and where


Oct 13, 2010 | 2006 Kia Spectra

1 Answer

Scanned = p-0449, cleared 2x, replaced sol valve, returned

The usual problem is the vent valve.This is what usually goes bad on these with this code.The vent valve is under the rear spare tire area or by the fill pipe and gets dirt and debris inside and it malfunctions.If you have a scan tool then go into out put test and command the vent valve on and off.You should hear a click.If you don`t hear a click then check for power to the vent valve with a test light.If you have power then replace the valve.Hope this helps.Good luck.

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3 Answers

I have code 440

PO440 means that the system has not created enough vaccum. the only way to test the solinoides is with a scan tool .the vent solinod will be closed by the PCM then the engine provides the vaccum at aroun ten in of water the pcm closes the purge solinoid . I would check all the hoses in the evap system for cracks and dry rott the smallest crack can lead to the light coming on and the system failing.hope this helped

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need to replace evap vent valve and clean dust from vent hoses

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