2001 Ford Focus Replace a Fuel Filter

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Although not a part of regular vehicle maintenance, there will come a time when you'll need to replace the fuel filter on your Ford Focus. Using a clogged filter can lead to serious problems, such as a burned-out fuel pump or a busted fuel line. Luckily, replacing a fuel filter is as simple as pulling the old one out and plugging a new one in, after you've depressurized the fuel system.

Tools Used[edit]

Safety glasses
Ratchet set, standard
Fuel filter

Replace a Fuel Filter[edit]

Depressurize the Fuel System

  • Remove the fuel pump fuse. This is in the fuse box underneath the dash on the driver's side of the cockpit.
  • Start the engine and let it idle until it stalls.
  • Crank the engine to make sure the fuel is fully out of the system.
  • Replace the fuel pump fuse.

Replace the Filter

  • Remove the battery ground wire. Lift the Ford Focus on a stable lift.
  • Put on safety glasses and gloves. Locate the fuel filter. It will be underneath the car towards the rear on the passenger's side.
  • Remove the fuel lines going into and out of the filter. Remove the evaporative emissions line.
  • Unbolt the bracket and remove the fuel filter.
  • Place the new fuel filter in the bracket, paying close attention to the directional flow arrows. Reattach the fuel lines and evaporative emissions line. Start the engine.