Dodge Durango P0449: Vent Valve Solenoid – Circuit Malfunction

The issue is quite common with Dodge Durango The Use code P0449. The code refers to a number you receive when your OBD2 scanner scans it. The evaporative emission control (EVAP), system is covered by P0449. It is frequently found alongside, or closely related to, other codes such as P0420 and P0446.



Your Durango's driveability is generally not affected by P0449. Certainly anytime the service engine soon light is on, it’s good to deal with it as soon as possible though. Außerdem Ta out Und und Des Da da des Dec De Tr all set in All Really good scanner It will let you know if your vent valve is functioning correctly. This scanner is common in shops. There’s a link towards the bottom the page on exactly how to perform a quality diagnosis with a scan tool.


Índice de Contenido
  1. Dodge Durango P0449 Definition
  2. Dodge Durango P0449 OBDII Code Symptoms
  3. Durango P0449 Troublecode Causes
  4. Dodge Durango Diagnostics - P0449
  5. The Most Popular P0449 Fixes
  6. Are P0449 Serious Concerns?

Dodge Durango P0449 Definition

P0449 Dodge Durango

The universal OBDII code P0449 can be used to diagnose problems. The code can be used to indicate the same problem regardless of the make and model of the vehicle (Durango, or not), as long it was produced after 1996.

If P0449 is displayed, it means that either the solenoid circuit or the valve controlling the evaporation system are not working correctly. Depending on your vehicle's model, the EVAP cycle fuel vapor out of the tank into an intake manifold. If the system fails to function properly, fuel vapor will not be removed.

ECM (Engine Control Modul) detected a fault within the circuit controlling the vent to release fuel vapor. The service engine will soon follow up on this.


Dodge Durango P0449 OBDII Code Symptoms

P0449 OBDII Code Diagnosis Dodge Durango
The P0449 code is usually triggered by the service engine soon lamp.

A P0449 Code will not usually be associated with other noticeable symptoms. Smells like gas The service engine soon light. It is possible to notice a slight dip in fuel economy.

Particular attention should be paid to the fuel tank or fuel filler tube smell.

The EVAP system is responsible for fuel vapors. If these vapors are leaking from the system, you’ll often smell them faintly while operating the vehicle.


Durango P0449 Troublecode Causes

P0449 can be triggered by many factors in Dodge Durango. These are some of the more common issues that can trigger the P0449 code. Here's a video explaining the process.


  • Fuel Cap– A bad fuel cap can cause the code to be thrown for sure. Often, you’ll get a message informing you that the fuel cap is off even when it is on. You may not need to spend a lot of money replacing the fuel cap if you get this message. fuel cap Try it and let us know if you get rid of it.
  • EVAP System Hose– The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak. The P0449 code will be generated. It should have a hole or tear. This is the main reason for this code. It can be hard to spot the hole without performing a smoke test.
  • Vapor Canister Purge Valve– One of the most common causes of the P0449 code is the vapor canister purge valve. It’s really easy to replace. You will need to locate and take out a few clips. Here’s How to test a purge valle (YouTube).
  • Trouble with Fuse/Wiring– If the wiring going to the valve has been compromise, it’ll lead to the P0449.
  • Fuel Tank Sending Unit– It is possible for the gasket that attaches the fuel sending unit to the gas tank to go bad. This could reduce the pressure in your tank and cause you to lose the code. This is not the right place to begin.
  • Fuel Filler Neck– There is often a gasket where the fuel filler neck connects with the gas tank. The gasket may dry out especially if the vehicle is in dry conditions. When it dries out, the fuel tank can’t hold pressure anymore, it may erroneously throw P0449.


Dodge Durango Diagnostics - P0449

To diagnose the problem with your Dodge Durango's P0449, a mechanic will have a variety of tools at his/her disposal. These are some of the common diagnostics that can be done for the code

  • To ensure that the cap can withstand pressure, the mechanic will check it. If you are getting a warning that your gas cap is off, even when it’s on, replacing it will more than likely clear this code.
  • The mechanic will usually check for any additional trouble codes. It is easier to diagnose problems if there are more codes. That’s because when they appear together in certain combinations, there will often only be only a few conditions that will throw any combination of codes at one time.
  • Once the mechanic has determined the trouble codes associated with P0449, he or she will usually Take a look at the EVAP system. These include the line and purge valve.
  • Monitor and check the pressure in your fuel tank.
  • After for the checks and fixes listed above, the mechanic will perform two tests: A smoke test, and they’ll use a scan tool to confirm that the EVAP solenoids and valves are operating properly.

Have you got trouble with your computer? Here’s a Super technical video This is a great article on how to diagnose P0449.


P0449 Code Fix Dodge Durango

Below are the most commonly used Durango P0449 fix:

  • Replacing the gas cap
  • Replacing EVAP lines
  • Vent valve replacement
  • Wiring repair

It is best to begin with the gas cap, and then work your way up to the fuel tanks. The gas cap is the most difficult and cost-effective item to replace.

Here’s a great video on How to test your gas tank.

It's a good idea to try and figure out why your Dodge Durango is throwing the P0449 code. This should help. Please feel free to add anything below.


Are P0449 Serious Concerns?

While P0449 is not going to cause the Durango’s engine to stop running, it should not be treated lightly. There could be fuel contamination. Check your fuel level to make sure it is not leaked. You should immediately take it in for repair or replacement.

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