Question about 1999 Pontiac Grand Am GT

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How do i replace the fuel pump on a1997 pontiac grand am gt

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  • Pontiac Master
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how do i replace the fuel pump on a1997 pontiac - 7ce56eb.gif
Remove the modular sender cover by releasing the tabs


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To remove the fuel pump and baffle assembly, you must rotate it cohow do i replace the fuel pump on a1997 pontiac - 5e9f083.gifise


5e9f083.gif
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... remove the pulse seal/dampener


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Exploded view of the modular fuel sender and related components

Posted on Oct 08, 2009

  • Greg Bernett
    Greg Bernett Oct 08, 2009

    The fuel pump is not serviced separately. The sending unit must be serviced as a complete unit.



    1. Properly relieve the fuel system pressure.


    2. If not already done, disconnect the negative battery cable.


    3. Drain, then remove the fuel tank.

    Be careful when removing the modular fuel sender/pump because it may spring up from its position.



    1. Remove the modular fuel sender/pump as follows:



      1. While holding the modular fuel sender assembly down, remove the snapring from the designated slots located on the retainer.


      2. Keep in mind that the reservoir bucket is full of fuel. It must be tipped slightly during removal to avoid damage to the float. Place the reservoir fuel into an approved container.


      3. Remove and discard the fuel sender O-ring.


    2. Remove the external fuel strainer.


    3. Remove the Connector Position Assurance (CPA) from the electrical connector, then detach the fuel pump electrical connector.


    4. Gently release the tabs on the sides of the fuel sender-to-cover assembly. Begin by starting at the sides of the reservoir and releasing the tab opposite the fuel level sensor. Move clockwise to release the second and third tab using the same method. Refer to the accompanying figure.


    5. Lift the cover assembly out far enough to detach the fuel pump electrical connection.


    6. Rotate the fuel pump baffle counterclockwise, then remove the baffle and pump assembly from their retainer. Refer to the accompanying figure.


    7. Slide the fuel pump outlet out of the slot, then remove the seal/dampener.

    To install:



    1. Install the fuel pump seal/dampener, then slide the fuel pump outlet in the slots of the reservoir cover.


    2. Position the fuel pump and baffle assembly onto the reservoir retainer, then rotate clockwise until seated.


    3. Lower the retainer assembly partially into the reservoir. Line up all three sleeve tabs. Press the retainer onto the reservoir making sure all three tabs are firmly seated.

    Gently pull on the fuel pump reservoir to be sure it is securely fastened. If it's not secure, the entire fuel sender must be replaced.



    1. Attach the fuel pump electrical connector.


    2. Attach the CPA to the fuel sender cover.


    3. Install a new external fuel strainer.


    4. Install the modular fuel sender as follows:



      1. Position a new sender-to-tank O-ring. Align the tab on the front of the sender with the slot on the front of the retainer snapring.


      2. Slowly apply pressure to the top of the spring loaded sender until it aligns flush with the retainer on the tank.


      3. Insert the snapring into its designated slots, making sure it is fully seated.


    5. Install the fuel tank.


    6. Carefully lower the vehicle, then fill the fuel tank.


    7. Connect the negative battery cable.


    8. To check for leaks perform the following:



      1. Turn the ignition to the ON position for two seconds.


      2. Next turn it to the OFF position for ten seconds.


      3. Turn again to the ON position and check for fuel leaks.

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