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I have mixup on the fuel lines to pump other than the filter line. The one line by the filter has a small female connection. Does anyone know if it goes to the middle metal line or the one to the righ

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  • Cars & Trucks Master
  • 5,324 Answers

First it is necessary to know what you are working on. One should be a return line (if a fuel injected later model car) and the other is a vent line. Buy a shop manual at any auto parts store.

Posted on Dec 10, 2014

Testimonial: "I tried the Haynes book. nothing. Is the middle line on the pump the return line"

  • David Harrelson
    David Harrelson Dec 10, 2014

    Usually center line is vent. Try installing a hose and blowing into it. If it is vent, should be easy to blow, but will block on sucking. BE CAREFUL! use long hose and short suck to prevent mouthful of gas!

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Are you talking the Fuel Line (Metal) or Hose (Rubber)?

Here are some facts you need to know to work with the OEM fuel lines.
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If it is not, it should be in the fuel line between the carb and the fuel pump on the side of the block.

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  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable and relieve the fuel system pressure.
    1. Disconnect the fuel lines from the fuel filter. Have a drain pan handy to catch any residual fuel once the lines are separated. On newer models, disconnect the fuel lines from the filter as follows:
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    2. Install and push the fuel line disconnect tool into the female fitting.
    3. Separate the male and female fittings.
    4. Inspect the fuel lines for any damage after the fuel is finished draining.

    1. Remove the fuel filter from the bracket and the retainer, if equipped. Note the direction of the flow arrow so the replacement filter can be installed correctly.
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    2. Install the fuel lines to the fuel filter. On newer models, align and push the male tube into the female fitting until a click is heard. Pull on the fitting to ensure that it is fully engaged, then install the safety clip.
    3. Lower the vehicle to the ground.
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    1.- For identify the right fuse, check your 2000-Ford-Excursion-Owners-Manual position 112, 20AMP (Maxi Fuse); details in the page 138 and next.

    2.- Ford Excursion, Expedition, Lincoln Navigator 2000-2005, Fuel Filter - Removal & Installation

    NOTE A fuel line disconnect tool is needed for this procedure.
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    5. Remove or disconnect the following:
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      0e9d2de.jpg

      Fig. Typical fuel filter mounting along an under-vehicle frame rail

    To install:
    1. Install or connect the following:
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    3. Connect the negative battery cable.

    Hope this helped.

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