How to Change a Fuel Filter

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Average rating from 429 customers who received a Fuel Filter Replacement.

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.

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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.

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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

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

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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.

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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.

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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.


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Recent Fuel Filter Replacement reviews

Excellent Rating


YourMechanic Fuel Filter Replacement Service

Average Rating

4.9/5

Number of Reviews

429

Rating Summary
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Diego

20 years of experience
473 reviews
Diego
20 years of experience
Dodge Ramcharger - Fuel Filter - Phoenix, Arizona
Simply amazing. Couldn't have asked for a better mechanic. Helped me with all my problems that came forthright. Very knowledgeable.
Jaguar XF - Fuel Filter - Peoria, Arizona
Diego changed my spark plugs and fuel filter. Did great job and kept car and work area spotless. Would definitely use again.

Christopher

4 years of experience
11 reviews
Christopher
4 years of experience
Ram 3500 - Fuel Filter - Granite Bay, California
Very knowledgeable and polite. Saved us a lot of money by recommending we not do unnecessary services.

ALAA

36 years of experience
14 reviews
ALAA
36 years of experience
Ford F-150 - Fuel Filter - Elverta, California
Alaa was a gentleman and a patient man. My truck gave him some fits. The fuel filter would just not come off for him, so he moved onto the fuel pump. Had the gas tank down, and fuel pump replaced in good time. Then, with much patience, back to the fuel filter. YAY.. perseverance persevered and wa -la success. Off with the fuel pump. Truck runs great. He did a great job. Thanks

Arturo

26 years of experience
108 reviews
Arturo
26 years of experience
Ford F-150 - Fuel Filter - Santee, California
Mr Arturo completed a fuel pump replacement and fuel filter right in my driveway with no trouble at all, went so well he finished the job a little ahead of the quoted time allotted for this job. Truck is running great again, thank you Arturo.

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