A vehicle's fuel filter is used to keep the fuel that is used in the fuel injection system clean to avoid plugging the fuel injectors and the fuel pressure regulator. The fuel filter should be changed between 25,000 and 35,000 miles depending on driving conditions. First locate and identify the fuel filter, all vehicles are different so you might have to look around for it. Some are under the hood and others are under the car or truck like the one used in this example.
Step 1 - Locate and replace the fuel filter
If you are unsure where your fuel filter is located consult a car repair manual. (Wear protective gloves and eyewear when replacing).
Step 2 - Remove the fuel filter connection
Remove fuel filter connections from fuel lines. A small amount of fuel will leak out when connections are removed. Next remove the fuel filter mounting bracket bolt and remove filter.
Remove fuel filter mount from old fuel filter and install it on the new fuel filter. Make sure that the direction arrow is pointing in the direction of the engine. (Forward in most cases)
After the fuel filter mount is installed reinstall fuel filter. Make sure the sealing "O" rings are in
place, in good condition and free from debris. Remount filter and reconnect. Start vehicle to check for leaks. Note: some fuel filters have a release tool to remove the fuel filter like Ford. To use the release tool insert the tool over the fuel line near the fuel filter, push the tool inward to release the fuel line from the filter. To reinstall the new filter push the fuel lines onto the new filter, the fuel lines automatically hold onto the new filter.
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