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Vehicle codes po449 - Cars & Trucks

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I believe this is an evap fault. first check for loose fuel cap. the possible component failure in evap system

Posted on Jan 10, 2013

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What's the make,year,model and engine size.

Posted on Jan 10, 2013

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Have a 08 uplander it has a code po449 I need a diagram of that evap system


heck engine P codes! Chevrolet uses an EVAP solenoid that is located under most vehicles near the gas tank and connects to the charcoal filter can. Codes can be set and will drive you crazy trying to figure out if you have a bad gas cap, broke lines---this is where they try to get you to do a smoke test, or you just think the vehicle is no good!

Sep 29, 2016 | Cars & Trucks

1 Answer

2005 Hyundai Sonata has trouble shooting code P0449.


po449 is -EVAPORATIVE EMISSION SYSTEM VENT VALVE/SOLENOID CIRCUIT

Nov 28, 2013 | Cars & Trucks

1 Answer

Will replacing the closed canister valve take care of the p0449 code .


Take battery cable off for about five mins. Put it back on and see if that works.

Apr 25, 2013 | 2009 Hyundai Sonata

1 Answer

What does code po449 mean


PO449---Evap System Vent Valve/Solenoid Malfunction

You can also Google any OBD2 Vehicle Codes-- to get
all sorts of info on any problem

Nov 25, 2012 | 2006 Pontiac G6

1 Answer

Engine code po449


engine lights came on and the codes are po449 and po449p on a 2007 chevy avalanche

Jun 30, 2012 | 2007 GMC Yukon

1 Answer

2005 chevy Z71 check engine code PO449 and PO455 5.3 Lt engine how do i fix them


get a new gas cap your evap sytem isnt working if the gas cap doesnt work then you might have a leak and check your EVAP purge valaves

Dec 07, 2011 | Cars & Trucks

1 Answer

My 2003 chevy silverado 1500 4wd (5.3 Vortec) has a trouble code (po449 & 455) I know what that problem is but, I do not know where the locations of this problem would be. PO449 is a Evaporative...


The first thing I would check is the fuel cap. Your vehicle uses a closed vent system to control the fuel vapors in the tank and then vent the vapors to the engine intake system to burn. so you have a leak either your purge/ vent solenoid is stuck or open all the time not allowing the on board diagnostics to run the test or you may a bad fuel cap, and it is venting to the atmosphere allowing the gross leak. The purge/ vent valve is under the vehicle next to the charcoal canister.

Feb 16, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

Check engine light came on giving me the code po449 when i had them put it on the machine


I do not have the PO449 code,but it is in with
the EVAP System codes
You will need professional help with EVAP Leaks,
only because they are so small, and there are a lot
of components in the system
So an EVAP Smoke Machine is used to find them.
It is about $1100 piece of equip. Fairly cheap and
fast at finding your problems.
Also a scanner may be necessary to actuate components
That is 9 grand plus 2 g for software.

No one ever puts a machine or computer on your vehicle,ever.
What is used, is a code reader or scan tool,to look at your
vehicles ECM or PCM. Your vehicle, is more of an assortment
of processors,than computers.

Dec 04, 2010 | 2006 Chevrolet Impala

1 Answer

Check engine light on 2004 GMC Yukon XL


Code po449 is the canister vent valve solenoid error.This is a common problem with these valves because they are under the truck in the rear by the spare tire and they get all the dirt and water and snow,if you live in an area where you get snow.You will find it on the canister under the vehicle by the spare tire.

Nov 18, 2009 | 2006 GMC Yukon Xl Denali

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