Avenger 2008

Evaporative Emission Control System

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EVAP Canister



Operation

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

The Evaporative Emissions (EVAP) Canister is the primary component in the Evaporative Emission (EVAP) Control System that prevents the evaporation of unburned fuel vapors (Hydrocarbons) from being released into the atmosphere. The EVAP canister contains a charcoal element for the filtering of hydrocarbons, and the filtered Carbon Dioxide (CO2) is then vented to atmosphere when the vehicle is not in operation. The canister also contains a number of ports, which provide for the redistribution of hydrocarbons into the fuel tank when the vehicle is in operation through the purge control system.

Removal & Installation

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and support vehicle.
  4.  
  5. Disconnect electrical connector (1).

    Click image to see an enlarged view

    Fig. Disconnect electrical connector (1)

  6.  
  7. Disconnect the hoses from the EVAP canister (2).
  8.  
  9. Remove filter hose from EVAP canister (2).

    Click image to see an enlarged view

    Fig. Remove filter hose from EVAP canister (2)

  10.  
  11. Remove mounting fasteners from bracket of the EVAP canister (1).
  12.  
  13. Remove EVAP canister assembly.
  14.  

To install:

  1. Install EVAP canister mounting bolts and tighten.
  2.  
  3. Connect filter hose to canister.
  4.  
  5. Connect electrical connector.
  6.  
  7. Connect hoses.
  8.  
  9. Lower vehicle.
  10.  
  11. Connect negative battery cable.
  12.  

Testing
Evaporative Emission Control System Diagnostics

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009

When testing the EVAP system for proper operation, there should always be a pressure differential between the fuel tank pressure and atmospheric pressure. If any of the tests reveal a pressure differential of less than.02- Hg (.067 kPa/.5mm Hg), the Powertrain Control Module (PCM) will interpret this condition as a leak.

  1. Verify the condition of the EVAP system by performing the following visual inspections:

    Ensure that the fuel filler cap is installed and properly secured.
     
    Inspect the charcoal canister for physical damage such as cracks, broken or cracked fittings, damage from road debris, or rodent damage.
     
    Inspect all EVAP control devices (EVAP and purge control system monitors, controllers, and actuators) for physical damage such as cracks, broken or cracked fittings, damage from road debris, or rodent damage.
     
    Inspect all hoses and vacuum line connections for proper routing and placement.
     
    Inspect all electronic control devices for proper electrical connections.
     
    Inspect the condition of all fittings and seals for damage, drying, or wear.
     
    Inspect the condition of all hoses and vacuum lines for displacement, damage, or wear.
     

  2.  

If any physical defects are evident, verify the operation of any questionable components before replacement.

  1. Verify the operation of the EVAP system by performing any or all the following tests:

    Using a suitable scan tool, perform an actuator (active) test to verify the correct operation of EVAP control devices (EVAP and purge control system monitors, controllers, and actuators).
     
    Using a smoke machine, verify that the EVAP system does not exhibit any physical leaks.
     
    Using a suitable EVAP system pressure tester, verify that the EVAP system is properly sealed against positive and negative pressure.
     
    Using a suitable EVAP system pressure tester along with a suitable scan tool, monitor the EVAP pressure under positive and negative pressure conditions.
     

  2.  

Related Diagnostic Trouble Codes

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009



Click image to see an enlarged view

Fig. Related Diagnostic Trouble Codes

 
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