Question about 2002 Dodge Durango

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Obd 2 code reader say i have a evap problem what the most common problem

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EVAP most common problem, gas cap not sealing good, have gas cap tested or replace.

Posted on Jun 03, 2010

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Charcoal canister is cracked or leaking or there is a leaky or plugged vacuum hose in the evap canister.

Posted on Jun 03, 2010

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What makes my Chevy malibu 2005 v6 put system code po449 out


P0449 - OBD II Trouble Code Evaporative System Vent Valve/Solenoid Circuit Malfunction Our emissions expert has put together the following information about the P0449 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
  • OBD II P0449
Fault Code Definition
  • Evaporative System Vent Control Circuit Malfunction
What does this mean? The evaporative control (EVAP) system captures any raw fuel evaporating from the fuel storage system (e.g. the fuel tank, filler neck, and fuel cap). Under precise operating conditions-dictated by engine temperature, speed, and load-the EVAP system stores and purges these captured fuel vapors back into the combustion process. The carbon canister, which stores the raw fuel vapors, utilizes a vent valve that allows fresh air to enter the EVAP system. This displaces the fuel vapor as it's purged into the combustion process. Code P0449 indicates that the evaporative control (EVAP) system vent valve solenoid is malfunctioning. This can be caused by either too little or too much electrical resistance or a mechanical problem with the vent valve itself. Symptoms
  • Check Engine Light will illuminate
  • In most cases, there are no adverse conditions noticed by the driver
  • In some cases, there may be a noticeable fuel odor caused by the release of fuel vapors
Common Problems That Trigger the P0449 Code
  • Missing fuel cap
  • Defective Evaporative Vent Valve
  • Defective or damaged fuel cap
  • Distorted, damaged or cracked Fuel Tank Filler Neck
  • Torn or punctured Evaporative system hose(s)
  • Defective Fuel Tank Sending Unit gasket or seal
  • Split or damaged Carbon Canister
  • Defective or damaged fuel tank
Common Misdiagnoses
  • Fuel cap
  • Evaporative Purge Valve
  • Evaporative Vent Valve
Polluting Gases Expelled
  • HCs (Hydrocarbons): Unburned droplets of raw fuel that smell, affect breathing, and contribute to smog

P0449 OBD II Trouble Code

Jan 30, 2017 | Cars & Trucks

2 Answers

Po442 code reader


no nothing to do with transmission ---its an evap code small leak detected this is the usual check gas cap that its on and tight or replace because seal is shot but the following link explains the other problems with assistance in helping repair problem
http://www.obd-codes.com/p0442

Jul 25, 2016 | 2000 Honda Passport

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

? 16:47
https://www.youtube.com/watch?v=AlfOSMmisPg
Mar 13, 2013 - Uploaded by realfixesrealfast
Here is a description and how to diagnose EVAP code P0449. ...Up next. Quick Easy Fix P0449 P0455 Evap Codes on ChevySilverado 2007 ...

Quick Easy Fix P0449 P0455 Evap Codes on Chevy ...

? 7:06
https://www.youtube.com/watch?v=aL5KmV1d26Y
Dec 27, 2013 - Uploaded by wagslick
Quick Easy Fix P0449 P0455 Evap Codes on Chevy Silverado 2007 .... Well clearing the error codes at auto store will not prevent it come ...

Solving a P0449 Engine Code on a 2008 Chevy Impala ...

pressanykey.simplyahobby.com/.../solving-a-p0449-engine-code-on-a-2...

Jan 07, 2016 | 2004 Chevrolet Chevrolet Impala

1 Answer

Hello again. I have the 2006 Nissan Altima 2.5S ......ok I had the issue bank 1 sensor 2 heater circuit low P0037 is the code I was getting. But when I connect the code reader it says that the heated 02...


O2 Emission Monitors & Evap Monitor-- are two
different systems

Get ALL your OBD Codes & work them one at a time,
& DO NOT Clear any data with code reader or removing
battery cable, or the monitors ALL have to run again

The heater may work in the sensor, but the sensor doesn't
switch fast enough or is worn out & the front sensors get
replaced at 100,000, before they fail or slow down

The Evap Codes will be needed, to work on that issue
That monitor runs last & only every few days

IF--- you had professional scan tool software, you would see
11 monitors & maybe 8 that run on your vehicle

There will be at least 2 for the O2,one for cylinder misfire,
one for evap, one for egr,& three others

Oct 21, 2014 | 2006 Nissan Altima 2.5

2 Answers

Codes p0456 and p0457 codes keep coming on what do i do


these are codes for the EVAP emissions. Evap is the system that recovers fuel vapor from the fuel tank, stores it in the charcoal canister, and then allows the engine to burn those vapors.

Here's what you can check.
1. check the fuel cap to make sure it is tight and the seal is not cracked.
2. check the filler kneck where the cap seals to it for rust or cracks.
3. check all the rubber hoses for the evap system for cracks (very common on chryslers).
3. If you cannot find any problems with the above you will need to have the system smoke tested for leaks.

if no leaks are found than the most likely problem is the NLDP (natural leak detection pump). Also very common on Chryslers.

Jan 05, 2012 | 2008 Chrysler Pt Cruiser

1 Answer

I have a obd code of PO456 for a 2003 dodge Durango.Do you know what that would be.


When you get the code,find out what it is,or buy a code reader and a book of codes

PO456 EVAP Contol System Leak (Very Small) 0.508mm (0.020 inch)

Gas Cap
Holes or cuts in fuel vapor hoses
Loose hoses
Evap Component failures
Vent solenoid open
Canister Purge Valve,issues

And on and on


Have a smoke machine put on the system and repaired

Nov 05, 2010 | Dodge Durango Cars & Trucks

1 Answer

My 2007 cadillac cts engin service light is on. I used OBD-2 code reader to read it, got a alarm code P0496. What's the meaning of P0496?thanks.


Check the gas cap,also,it could mean the evap system is not working,or you have run out of gas recently,if all this checks out ok,then the tank is not venting properly.

Sep 10, 2010 | 2007 Cadillac CTS 3.6L

1 Answer

1999 lincoln navigator obd code p0455


Either the fuel cap, or the evap solenoid on the charcoal canister. I'd start with the fuel cap.

May 27, 2009 | 1999 Lincoln Navigator

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

1 Answer

1995 Ford Ranger ( engine light ) and stuff need help plz


if your obd2 scanner fits the connection you have obd2, obd1 connector is way differnt.

your code p1443
Control System
Canister Purge
Valve (Mechanical)
Malfunction
Monitors the fuel vapor
flow between the
engine intake manifold
and the EVAP
canister. The system
failure occurs when a
leak or blockage
between the intake
manifold, the EVAP
canister purge valve
and the EVAP canister
is detected by the
PCM.
l Pinched, blocked or
plugged fuel vapor
tubes/hoses (except
between fuel tank and
EVAP canister)
l Damaged EVAP
canister
l Disconnected, cracked
or cut fuel vapor
tubes/hoses (except
between fuel tank and
EVAP canister)
l Damaged EVAP
canister purge valve
Check for audible vacuum
noise in the engine
compartment or significant
fuel odor in the engine
compartment or near the
EVAP canister.

This link has all the codes you need.
http://rockledge.home.comcast.net/~rockledge/RangerPictureGallery/DTCs.pdf

Jul 17, 2008 | 1995 Ford Ranger Supercab

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