How to Change a Fuel Filter

When people talk about routine maintenance greatly lengthening the life of a car, they are usually referring to simple services like replacing the fuel filter and changing the oil at regular intervals. Fuel is necessary to make the engine run, so in order to keep the fuel injectors, fuel pump, and fuel lines clean, a fresh fuel filter is required.

Most modern gas stations have very clean fuel, and there is a slight amount of filtering done by the filter around the fuel pump. Despite this, very small contaminants can get through. Since fuel injectors have such tiny openings, the fuel filter is used to remove even the smallest contaminants. A fuel filter will last about 2 years or 30,000 miles before it needs to be replaced.

Materials Needed

  • Flare nut wrench of the appropriate size
  • Fuel line disconnect tool
  • Pliers
  • Protective gloves
  • Safety glasses
  • Screwdriver
  • Wrench of the appropriate size

Part 1 of 2: Remove the fuel filter

How to Change a Fuel Filter 2

Step 1: Locate the fuel filter. Generally, the fuel filter will be located under the vehicle on the frame rail or in the engine compartment near the firewall.

How to Change a Fuel Filter 3

Step 2: Remove the gas cap. Remove the gas cap to relieve fuel system pressure.

How to Change a Fuel Filter 4

Step 3: Disconnect the fuel lines. Use two wrenches to remove the fuel lines from the filter. Place an open-end wrench on the fuel filter fitting and a flare nut wrench on the fuel line fitting. Turn the fuel line fitting counterclockwise while holding the filter with the other wrench.

  • Note: The method for disconnecting the fuel lines varies between vehicles. Some vehicles have quick connect fittings that must be removed with a special disconnect tool. Some have banjo fittings that are removed with a ratchet or wrench, and some have hose clamps that are removed with pliers or a screwdriver.

How to Change a Fuel Filter 5

Step 4: Remove the fuel filter bracket mounting fasteners. Loosen and remove the fuel filter bracket mounting fasteners using a ratchet and appropriate sized socket.

How to Change a Fuel Filter 6

Step 5: Remove the fuel filter. Once the fasteners have been removed and the mounting bracket is loose, slide the fuel filter out of the bracket. Discard the old filter.

Part 2 of 2: Install the new fuel filter

How to Change a Fuel Filter 7

Step 1: Install the new fuel filter. Slide the new filter into the mounting bracket.

How to Change a Fuel Filter 8

Step 2: Install the fuel filter bracket mounting fasteners. Loosely install the bracket mounting fasteners by hand. Tighten them until they are snug using a ratchet and appropriate sized socket.

How to Change a Fuel Filter 9

Step 3: Reinstall the fuel lines. Thread the fuel lines in by hand. Place an open-end wrench on the fuel filter fitting and a flare nut wrench on the fuel line fitting. Turn the fuel line fitting clockwise until it’s snug while holding the filter with the other wrench.

How to Change a Fuel Filter 10

Step 4: Reinstall the gas cap. Replace it now so you don’t forget to do it before driving the car.

Step 5: Test the vehicle. Start the vehicle and check for leaks. If you find any, recheck the fuel filter, fuel lines and all fittings to make sure everything is secure.

That’s what it takes to replace your fuel filter. If this seems like a job you’d prefer to leave to a professional, the team at YourMechanic offers expert fuel filter replacement at the location of your choice.

Next Step

Schedule Fuel Filter Replacement

The most popular service booked by readers of this article is Fuel Filter Replacement. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE


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Recent Fuel Filter Replacement reviews

Excellent Rating


Rating Summary


9 years of experience
53 reviews
9 years of experience
Mercury Grand Marquis V8-4.6L - Fuel Filter - Edmond, Oklahoma
Levi arrived on time, worked during cold conditions and did an excellent job. Levi has helped us before. We like his attitude and his work. He is an outstanding mechanic.
Mercury Sable - Fuel Filter - Oklahoma City, Oklahoma
He let me know that he was going to be there earlier than expected, which was awesome, and he took care of the problem and didn’t try and up sell any work that some garage mechanics do. Will definitely be using him again for all our car needs.


15 years of experience
429 reviews
15 years of experience
Acura Integra L4-1.8L - Fuel Filter - Vancouver, Washington
Andrew was very informative on what was going on with my Acura and what needed to be done as part of it’s maintenance. He was also early on both appointments which was even better!
GMC K1500 Suburban - Fuel Filter - Portland, Oregon
On time, very polite, and is one of the few mechanics who I felt actually listened to what I thought the problem was! I don't really want any other mechanic anymore


36 years of experience
823 reviews
36 years of experience
Chevrolet Silverado 2500 HD V8-6.6L Turbo Diesel - Fuel Filter - Phoenix, Arizona
Scott Was very awesome. Helped solve my problem and was very efficient. Really cool guy and did a great job!


20 years of experience
469 reviews
20 years of experience
Chrysler Voyager V6-3.3L - Fuel Filter - Lake Worth, Florida
On time , friendly and totally professional Jeremy got the job done fast and excellently. Will ask for him again if I ever need anything more worked on.

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