How to Replace a Car’s Fuel Filter

If you want your car to go faster, have better fuel efficiency or generate more power, then changing the fuel filter will surely give the driver a more boost under the bonnet and save money at the gas station. It is not very difficult to change a fuel filter and it is better and cheaper than paying a visit to the mechanic. Follow the simple directions.

Things Needed

  • Flat-head screwdriver
  • Jack and jack stands
  • Pliers
  • Phillips screwdriver
  • Drive-up ramps
  • Wrench assortment.
  • Gloves
  • Safety glasses

Fuel Filter


Step 1:

Wear your protective gear and collect all the required tools. Don’t forget the screwdrivers and assortment of wrenches as they are essential. The ones you will be using depend on the vehicle.

Step 2:

Raise the vehicle and support it on jack stands or drive-up ramps. It is not good to only rely on a single jack because this can be very unsafe.

Step 3:

Locate the fuel filter. The placement of the fuel filter is different in different vehicles. The safe way is to start the search near fuel tank under the body. The owner manual can be consulted if there are any problems or make a call to your auto dealer.

Step 4:

The protective covering guarding the fuel filter has to be removed. A kind of plastic covering is present in most of the filters to prevent damage. Any common wrench, screwdriver or hex wrench can be used to remove it.

Step 5:

The fuel lines attached to the fuel filter have to be removed. These hoses may be linked to the pump in a number of ways such as clips, brackets or links. A wrench or a screwdriver can be used for this purpose, whichever is required by the attachments.

Step 6:

The fuel lines should be capped with a pencil, pen or a golf tee. They have to be kept tilted towards the drainage canister.

Step 7:

The fuel filter has to be now removed from the assembly, note the way in which it was oriented. There will be an arrow likely present on the filter which should be pointing towards the engine away from the fuel tank.

Step 8:

Now the new fuel filter can be installed. Make sure that it is leaning so the fuel arrow is pointing towards the engine.

Step 9:

The hoses and the guard can now be finally reattached.

Tips and Precautions

  • Never light matches or smoke when performing the task of changing a fuel filter.
  • The fuel filter should never be over-tightened as it can damage and cause fuel leakage.
  • Before starting, make sure that the engine is sufficiently cool. Any heat can cause a spark or a fire.
  • The fuel filter should be changed after every 10 or 15 thousand miles. However it has to be more frequently changed if the environment is dusty and the road has dirt and gravel. Those vehicles which are older than ten years can have rusted fuel tanks that contribute to blocking.
  • Make sure that the car is secure before going under it. A jack, jack stands or drive-up ramps should be used.
  • Installing a new fuel filter is cheaper than relying on the one that is worn out, it is one of the serious results of a rigorously blocked fuel filter.

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