How to Change a Fuel Filter | YourMechanic Advice

How to Change a Fuel Filter

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Average rating from 463 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.

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.

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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.


Next Step

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Recent Fuel Filter Replacement reviews

Excellent Rating


YourMechanic Fuel Filter Replacement Service

Average Rating

4.9/5

Number of Reviews

463

Rating Summary
428
25
2
1
7
428
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7

Andrew

14 years of experience
306 reviews
Andrew
14 years of experience
Acura Integra - 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

Dameron

16 years of experience
49 reviews
Dameron
16 years of experience
Toyota Avalon - Fuel Filter Replacement - Indianapolis, Indiana
Wonderful experience. He had the job done within a few minutes and made it look simple. Dameron also showed me things that need to be fixed as well and tought me a few tricks. I will be a returning customer.

William

16 years of experience
83 reviews
William
16 years of experience
Ford Taurus - Fuel Filter - Denver, Colorado
William showed up on time. Very knowledgeable, courteous, pleasant to talk to. He explained what he was doing. Asked him what SUV he would recommend. He said any of the mechanics could even go and do a 125 point inspection on a vehicle I may be thinking of buying in the future which I thought was great. He is fantastic. Will definitely use William again for any car repairs.

Joseph

16 years of experience
21 reviews
Joseph
16 years of experience
Ford Explorer Sport Trac - Fuel Filter - Dania, Florida
Joseph was running a bit late due to traffic but contacted me by text to let me know. He performed the work in good time and gave me solid recommendations.

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