GM Malibu/Cutlass 1997-2000

Evaporative (EVAP) Canister

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The Evaporative (EVAP) system is designed to limit gasoline vapor, which normally escapes from the fuel tank and the intake manifold, from discharging into the atmosphere. Vapor absorption is accomplished through the use of a charcoal canister, which stores the vapors until they can be removed and burned in the combustion process.

The EVAP canister is located under the vehicle, near the fuel tank.

SERVICING



The EVAP canister requires no periodic servicing. However, a careful inspection of the canister and hoses should be made frequently, whenever the vehicle is raised. Replace damaged components as required.

REMOVAL & INSTALLATION



The EVAP canister may be removed to provide more access to the fuel filter.

  1. Raise and safely support the rear of the vehicle securely on jackstands.
  2.  
  3. Remove canister retainer bolt.
  4.  



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Fig. The EVAP canister is adjacent to the fuel filter and secured with one retaining bolt

  1. Lower the end of the canister, then remove the canister and retainer.
  2.  



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Fig. Lower one end of the canister to slide it from the body mount

  1. Disconnect the hoses from the EVAP canister.
  2.  
  3. To detach the connector, pinch or squeeze the raised edges of connector end while pulling the connector off.
  4.  



Click image to see an enlarged view

Fig. The connector must be squeezed while detaching it

To install:

  1. Firmly press the vacuum lines onto canister and attach the electrical connector.
  2.  


NOTE
The ends of the snap connectors must be fully seated below the canister fitting ends.



Click image to see an enlarged view

Fig. While firmly holding the canister, press the lines onto the fittings



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Fig. Make sure the snap ends are fully seated on the canister fittings

  1. Position the canister into the body mount, and secure with the retaining bolt.
  2.  
  3. Carefully lower the vehicle.
  4.  

 
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