How to Install an Inline Electric Fuel Pump

Written by david machado
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How to Install an Inline Electric Fuel Pump
Working space under the bonnet can be tight in certain vehicles. (fuel valve image by Luis Bras from

Working with fuel lines and subsequent connections requires extreme caution. Patience and the ability to work in a neat and organised fashion help prevent accidents from spilt fuels. Following strict safety practices are a must-have habit when working in mechanical settings. An inline electric fuel pump installation follows straightforward and easy to understand steps. Basic tools and mechanical skills are needed to perform this installation. Understanding the meaning of the terms positive, negative, fused, and ground are also necessary.

Skill level:

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Things you need

  • Safety glasses
  • Wrench kit
  • Screwdriver kit
  • Plastic petroleum proof container
  • Metal bucket
  • Clean rags

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  1. 1

    Locate the battery. Identify the positive and negative cables. Disconnect the positive cable from the battery. Place it where the end cannot accidentally contact anything.

  2. 2

    Locate the fuel filter. Locate the point where the fuel line connects to the effluent or out end of the filter. Place a plastic container that is approved for petroleum products under the fuel line and disconnect it from the effluent end of the filter.

  3. 3

    Catch any fuel that drips out into the plastic container. Pour excess fuel into the metal bucket. Wipe the area with the rag if any fuel spilt and was not caught with the plastic container. Place the rag and the metal bucket away from the work area.

  4. 4

    Connect the short fuel line that is attached to the new fuel pump on the influent end where it is marked "in," to the out end of the filter, using hose clamps. Connect the original fuel line that was disconnected from the filter to the other end of the fuel pump that is marked out.

  5. 5

    Check all clamps to ensure they are tight. Mount the body of the fuel pump to the body of the vehicle using cable ties or screws. Locate the vehicles ground terminal strip or any vacant ground terminal.

  6. 6

    Locate the wires on the fuel pump and identify the positive and negative wires. Run the negative wire to the vehicle's ground terminal strip or a vacant ground terminal. Connect the negative wire to the vacant ground terminal or the ground terminal strip using a spade connector.

  7. 7

    Locate the vehicles fuse panel. Identify a vacant thirty amp circuit that is marked and controlled by the ignition switch. Run the positive wire from the fuel pump to the vacant thirty amp terminal and plug it in using a spade connector. Connect the positive cable back to the battery.

Tips and warnings

  • Do not work with the battery connected. Do not smoke while working on fuel lines or allow anyone near the vehicle who is smoking while working with the fuel lines.

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