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Buick Rendezvous 2007 p0449 code

Engine light on, code read out p0449, p0455, p0449, p0445

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 2002 Buick Rendezvous Error

I have had simlar issues. The first thing to try is to diconnect the positive lead from teh battery. Be careful as there are some issuesd surrounding OEM batteries in the 02. after about 30 secs reconnect the cable. This will "reset" your system and if it is just a glitch, the problem should be gone. If this does not fix the problem it is most likely your intrument cluster, however it can also be the BCM (Body Control Module). Have a dealer check it out for you. Before you buy a replacment part from the dealer chaeck out the prices at newgmparts.com or Rock Auto, both saved me 50% or more when I needed to have these items replaced.

Posted on Sep 23, 2008

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czaa
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SOURCE: 2005 Silverado 4WD engine codes P0449 and P0445.

the codes relate to the evaporation system from gas tank-its an EPA thing--the computer is talkin to u -do what it sez

Posted on Dec 28, 2009

  • 262 Answers

SOURCE: Getting codes P0455 and P0449. From what I read,

The vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
I am not aware of any aftermarket parts suppliers.

Posted on Feb 25, 2010

Molson02536
  • 3854 Answers

SOURCE: My check engine light is on and I am getting codes

The p0455 is for a leak concern and if that was the only code I'd say give the cap a shot. However the p0455 is most likely just a side effect of the P0449. The P0449 is a test that is run on the vent solenoid circuit to check the electrical functions in basic terms. The computer is putting out voltage amount X and in a properly functioning circuit it knows it will see voltage amount Y come back. It isn't coming back as what it expects to come back at so there must be something electrically wrong with the vent circuit. And of course if the vent doesn't work you get a large leak. If we are just throwing parts at trucks the logical one for you is a vent valve. Since your Vue is a 2008, most likely there is a good chance that it's covered under the emission warranty which is 5 years.
Thank you for using fixya. and be safe.

Posted on Jul 07, 2010

techbuster
  • 5081 Answers

SOURCE: My 2005 Tahoe has engine light codes P0449 &

The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.


Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid

Posted on Aug 24, 2010

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I have a trouble code P0449


Most of the vent valves are not hard to replace. They are located near the fill tube for the gas tank. Most cars are behind the wheel well. I can usually change them in about 1/2 hour.

May 18, 2016 | Buick Rendezvous Cars & Trucks

1 Answer

What are the probable causes of DTC P0449?


P0449 - OBD-Codes.com

www.obd-codes.com/p0449
Detailed information on diagnosing and repairing a P0449 DTC code which refers ...P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit ... OBD-IITrouble Code Technical Description ... 2004 Chevrolet Tahoe 4.8L p0449

EVAP Code P0449 - YouTube

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Jan 07, 2016 | 2004 Chevrolet Chevrolet Impala

1 Answer

Engine skipping on a buick Rendezvous


When the check engine light is on, the computer has found a problem that can affect fuel economy or emissions.
When the light flashes the problem is serious.
You need to get the computer scanned for trouble codes to proceed with testing.

Feb 22, 2013 | 2007 Buick Rendezvous CXL SUV

1 Answer

My check eng. light came on and I had it checked and the two codes p0455 &p0449 showed up, what should I do about this?


P0455 stands for evap emissions detection leak and p0449 stands for evap emissions vent control circuit. You should go to a parts store and see if your able to purchase and install. Best of luck!

Feb 27, 2012 | 2007 Buick LaCrosse CXL Sedan

1 Answer

I have a 2007 Chey silverado, and the two codes came up, P0449, and P0455. i know one is a large leak in the emissions system and not sure what the other one is. Should i get it hooked up to a fogger or...


  • P0449 - Evaporative Emission (EVAP) Vent Solenoid Control Circuit
  • P0455 - Evaporative Emission (EVAP) System Leak Detected

  • Many times this is caused by the canister vent solenoid. You can definitely hook the smoke to it but quite often is just that particular solenoid malfunctioning.

    Jan 12, 2011 | Chevrolet Chevy Cars & Trucks

    2 Answers

    Will a faulty gas cap make the check engine light come on?


    yes, it will usually set a code P0445

    P0455 Evaporative emission (EVAP) system - large leak detected



    Oct 24, 2010 | 2002 Pontiac Bonneville

    3 Answers

    My check engine light is on and I am getting codes P0449 and P0455. What is this and how do i fix it?


    The p0455 is for a leak concern and if that was the only code I'd say give the cap a shot. However the p0455 is most likely just a side effect of the P0449. The P0449 is a test that is run on the vent solenoid circuit to check the electrical functions in basic terms. The computer is putting out voltage amount X and in a properly functioning circuit it knows it will see voltage amount Y come back. It isn't coming back as what it expects to come back at so there must be something electrically wrong with the vent circuit. And of course if the vent doesn't work you get a large leak. If we are just throwing parts at trucks the logical one for you is a vent valve. Since your Vue is a 2008, most likely there is a good chance that it's covered under the emission warranty which is 5 years.
    Thank you for using fixya. and be safe.

    Jul 07, 2010 | 2008 Saturn VUE

    2 Answers

    Getting codes P0455 and P0449. From what I read,


    The vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
    I am not aware of any aftermarket parts suppliers.

    Feb 25, 2010 | 2005 Chevrolet Avalanche

    2 Answers

    2007 Buick Rendezvous, had to jump start it and now the service engine light is on and the tempurature gauge won't work? Also the cooling fan keeps coming on like the car is running hot?


    Sounds like a coolant temp sensor. Have it scanned, Autozone will do it for free. If the computer has a code in it for the coolant temp sensor it will lock the cooling fans on to prevent overheat because it has no idea what the engine temp is.

    Jun 11, 2009 | 2007 Buick Rendezvous CXL SUV

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