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How to Install a Ford Motorcraft OEM Fuel Filter on your 1998-2004 Mustang

Installation Time

1 hours

Tools Required
  • Medium-Sized Flathead Screwdriver
  • Plenty of Cleanup Towels
  • Jack & Jack Stand or Lift
  • Quick Disconnect Tool (Autozone has one with two sizes, 5/16” and 3/8”, for about eight dollars that covers all ’90 or newer Ford models. Had to give it a little bit of man handling to get it to work.)
  • Safety Goggles
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List of Tools

 Medium-sized flat head screwdriver.
 Plenty of cleanup towels.
 Jack & Jack Stand or Lift.
 Quick Disconnect Tool. (Autozone has one with two sizes, 5/16” and 3/8”, for about eight dollars that covers all ’90 or newer Ford models. Had to give it a little bit of man handling to get it to work.)
 Safety Goggles.

Estimated Installation Time: 30 minutes.

1. The first step to installing the fuel filter is to relieve as much fuel pressure in the car as possible. It can be done through several ways.

a. An easy way to relieve fuel pressure is to let the car sit for a few hours.

b. After that you can pop the hood and locate the Schrader valve branching off the fuel rail. On my ’00 v6 the valve was located to the left of the throttle body.

c. Remove the cap.

d. To relieve the pressure, grab a flathead screwdriver and press down on the tip inside the valve. To avoid fluid spraying out first cover the valve with a towel then relieve the pressure with the screwdriver pushing through the towel.

e. Another way to relieve the pressure is to remove the fuel pump fuse while the car is running and let it die out using the built up pressure. The fuse can be located in the fuse box either by the battery or under the dashboard on the driver’s side.

2. Now you can begin to change the filter; it is located under the rear of the car in front of the gas tank.

3. Use a lift or jack to raise up the rear of the car; make sure the car is properly and safely held up as you will be working underneath.

4. You should see the filter located by the tank. Make sure to take note of the orientation of the fuel filter, especially the end with the slightly larger rim. The new filter should be put in with the same orientation as the old one.

5. Begin by removing the hose clamp surrounding the filter with a flathead screwdriver, and then move it to the side.

6. Remove the filter from the metal holder.

7. Disconnect the metal brackets holding the filter to the fuel line.

8. On this step, make sure to wear protective eyewear as well as covering the floor with towels to soak up any spilled gasoline. With the quick-disconnect tool, remove the fuel filter. This can by done by sliding the tool into the female connection of the rail and separating them apart.

9. Now that the old filter is out place in the new filter with the correct orientation as the old one. Make sure to reconnect the filter to the fuel line until you hear a click.

10. Now reconnect the two metal brackets on each side of the filter and place the filter back into the holder.

11. Tighten down the hose clamp over the filter. Now re-check all connections, making sure nothing is loose. With a disposable cleanup towel wipe away any gas that might have spilled onto the fuel line.

12. While under the car, now would be a good time to check the gas tank for leaks or corrosion.

13. Lower the car and replace the Schrader valve cap and fuel pump fuse.

Installation Instructions Written By AmericanMuscle Customer Kevin Daniel 5/17/2013

This guide applies to Vehicle years: 1998, 1999, 2000, 2001, 2002, 2003, 2004 and Submodels: Bullitt, Mach 1, V6, Cobra, GT