GM Malibu/Cutlass 1997-2000

Fuel Filter

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The fuel filter is located on the underside of the vehicle, rearward of the fuel tank. There is no service interval for fuel filter replacement. The filter only is replaced if it becomes restricted. However the fuel filter and fittings should be inspected for leaks every time the vehicle is raised, such as during oil changes and tire rotations.

REMOVAL & INSTALLATION




CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

  1. Relieve the fuel system pressure. For details regarding this procedure, please refer to Section 5 of this guide.
  2.  
  3. If not done already, disconnect the negative battery cable.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Remove the EVAP canister for accessibility. Refer to procedure in this section.
  8.  



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Fig. The location of the EVAP canister restricts accessibility to the fuel filter



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Fig. Once the canister is removed, the fuel filter is easily accessed

  1. Clean both fuel feed pipe connections and the surrounding areas at the in-line fuel filter with a clean rag to avoid possible contamination of the fuel system.
  2.  
  3. Using a backup wrench, remove the fuel line fittings from one end of the fuel filter. Most of the fittings will require a 16mm or 20mm wrench. Line or flare wrenches are to be used. However, an adjustable wrench may be used for the filter fitting.
  4.  



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Fig. When loosening the fuel lines, always use a backup wrench to prevent line twisting

  1. Grasp the filter and nylon fuel connection line fitting. Twist the quick-connect fitting 1 / 4 turn in each direction to loosen any dirt within the fitting.
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  3. Remove the quick-connect fitting by pushing inward toward the fuel filter and grasping the plastic tab around the connector and pull apart.
  4.  



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Fig. Remove the quick connect fitting from the filter

  1. Remove the fuel filter.
  2.  

To install:

  1. Position the filter in the same position it was during removal.
  2.  
  3. Connect the fuel lines to the fuel filter. Be sure to start the threaded line by hand first to make sure the line does not cross-thread.
  4.  



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Fig. Carefully thread the line by hand first

  1. Using a backup wrench, tighten the fuel line to 20 ft. lbs. (27 Nm)
  2.  
  3. Lower the vehicle. Install or tighten the fuel filler cap, then connect the negative battery cable.
  4.  
  5. Start the engine and check for leaks.
    1. Turn the ignition switch to the ON position for two seconds.
    2.  
    3. Turn the ignition to the OFF position for ten seconds.
    4.  
    5. Turn the ignition to the ON position.
    6.  
    7. Check for leaks.
    8.  

  6.  

 
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