How to Install a Fuel Filter on Vehicles

by Contributing Writer; Updated June 12, 2017

The fuel filter on the Vehicles is a two-port canister fuel filter. The main responsibility of the fuel filter is to keep any type of trash or fuel sediments from getting into the engine. The fuel filter prevents this by trapping the sediments inside of the elongated fibers that make up the inner filter. The gas flows through the fibers and to the fuel injectors. As the gas passes through, the sediments are caught and trapped, leaving only the clean gas to flow to the injectors.

Under The Hood:

 How to Install a Fuel Filter on a Toyota Corolla

Park your car in a safe place and relieve the fuel system pressure. Remove the rear seat and unscrew the floor service cover mounting bolts, using a Phillips screwdriver; or remove the sealing tape, depending on your particular model. Once you remove the cover, you will see the fuel pump assembly mounted on the fuel tank.

Unplug the fuel pump electrical connector from the fuel pump assembly. Start the engine and let it run until it stalls; then disconnect the black, negative battery cable and remove the fuel tank filler cap.

Unplug the fuel pump vapor pressure sensor electrical connector if your model is equipped with one; then pull the fuel line clip using a pair of nose pliers. Disconnect the fuel line from the fuel pump assembly.

Remove the fuel vent line by pressing the tabs on the retainer and pulling the line off the assembly. If you have a 2002, 2003 or 2004 model Toyota Corolla, unscrew the retainer ring mounting bolts using a Phillips screwdriver; otherwise, use a fuel lock nut wrench to unscrew the ring.

Lift the fuel pump assembly off the fuel tank and discard the O-ring located between the assembly and fuel tank. Remove the fuel filter from the assembly and install the new unit.

Install a new O-ring and set the fuel pump assembly in place. Screw the retainer ring or use the fuel lock nut wrench. If you are using the wrench, align the indented mark on the tank with the tab on the fuel pump assembly mounting surface; align the mark on the retainer ring with the previous marks and rotate the ring 2 complete turns using the fuel lock nut wrench.

Press the vent line on its fitting until the lock snaps in place; then install the fuel line and secure it with the clip; plug the fuel pump vapor pressure sensor electrical connector and the fuel pump electrical connector.

Connect the black, negative battery cable and install the fuel tank filler cap. Start the engine and check for leaks; then turn off the engine and set the fuel pump assembly service cover in place. Install the mounting screws or seal it with butyl tape and install the rear seat.

Items you will need

  • Stay away from open flames.

  • Phillips screwdriver

  • Nose pliers

  • Fuel lock nut wrench

  • New fuel pump assembly O-ring

  • Sealing butyl tape

 How to Install a Fuel Filter in a Chevy Corsica

Park the Chevy Corsica in a well-ventilated area such as outside or inside of a garage with the doors and windows open. Make sure that the surface is level.

Walk back to the rear of the Chevy Corsica and take the gas cap off the gas tank. This eases pressure in the fuel lines and will prevent the gas from spraying out of the fuel lines when removing the lines from the fuel filter.

Jack up the rear of the Chevy Corsica and put the jack stands under the jacking points on both sides of the car. The rear jacking points on the Chevy Corsica are located under the side frame rail in front of both rear tires. Lower the Corsica onto the jack stands and leave the jack under the car.

Crawl under the rear of the Corsica and locate the fuel filter. The fuel filter will be a round silver canister that is between the gas tank and the rear of the car. The fuel filter has a fuel line coming out of each end.

Push the catch pan under the location of the fuel filter. Compress the ends of the fuel lines with your hand and a clean rag. Then turn the fuel line counterclockwise to loosen the line from the fuel filter tube. Pull out on the fuel line while you are still compressing the end of the fuel line with your hand. Use this same method for both fuel lines.

Push the old fuel filter out of the bracket and slide the new filter into the bracket. Make sure that the imprinted arrow on the side of the filter is facing the correct way. The arrow should be pointing away from the gas tank and towards the front of the car.

Push the fuel lines onto the new fuel filter tubes and then turn the fuel lines clockwise to secure them to the fuel filter. Gently pull out on the fuel lines to check that they are secured well. Remove the catch pan from underneath the car.

Put the gas cap onto the gas tank. Get in on the driver side and turn the ignition key from on to off three times to prime the filter. Then, crank the motor.

Look under the rear of the Corsica and inspect the new fuel filter for any leaks while the motor is running. Turn the motor off.

Jack the Chevy Corsica back up and pull the stands out from under the car. Lower the car back to the ground and remove the jack.

Items you will need

  • Floor jack

  • Jack stands

  • Small fluid catch container

  • Clean rag

  • New fuel filter

 How to Install a Fuel Filter in a 2003 Ford Mustang

Drive the Mustang's front wheels onto ramps. Turn off the car, remove the key and set the parking brake before getting out. Place wheel chocks behind the rear wheels.

Slide a drip pan under the driver's-side door, on the ground. Climb under the car with a socket set, fuel line disconnect tool and the new filter.

Locate the fuel filter on the inboard side of the frame, about midway between the front and rear wheels. The easiest way to locate it is to simply follow the fuel lines forward from the fuel tank until you see it.

Unbolt the metal retaining strap that holds the filter firmly to the frame. Use the socket set to do this.

Disconnect the front fuel line from the fuel filter outlet, using the fuel line disconnect tool. The line has a small clip in the end where it flares around the fuel line outlet. You must pry this clip up with the tool before the fuel line comes off the outlet.

Pull the front fuel line off the fuel filter outlet. Remove the rear fuel line from the fuel filter inlet in the same manner, then pull the old filter out of the retaining strap and put it in the drip pan.

Insert the new fuel filter into the retaining strap. Make sure the direction arrow points toward the front of the Mustang. Reinstall both fuel lines in reverse of removal and thread the bolt back into the retaining strap, tightening it down with the socket set.

Climb out with all your tools and parts. Turn the ignition key to the "Run" position and wait until you hear the fuel pump shut off. This should be about 10 seconds. Once the pump turns off, start the engine. Move the wheel chocks, release the parking brake and drive the Mustang off the ramps.

Items you will need

  • Ramps

  • Wheel chocks

  • Drip pan

  • Socket set

  • Fuel line disconnect tool

  • New filter

 How to Install a Fuel Filter for a Mercedes Benz 300E

Lift the rear of the vehicle with a floor jack and lower it onto a pair of jack stands. Under the car, between the right (passenger-side) rear tire and the fuel tank is a plastic cover that conceals and protects the 300E’s fuel filter.

Remove the plastic nuts that hold the panel on with a socket and a ratchet or a wrench. Remove the panel and set it aside.

Place a pair of locking pliers on the fuel lines where they come out of the either end of the filter so that they squeeze the lines shut. This is to prevent fuel from coming out when the filter is removed. You can also use rags between the jaws of the pliers to protect the lines.

Loosen the hose clamps that hold the fuel lines to the fuel filter with a screwdriver. Pull the lines off the filter by twisting and simultaneously pulling on them. Loosen the bolt or nut that tightens the filter to the filter bracket. Remove the filter and discard it.

Wipe up any spilled fuel with a rag. Install the new filter into the bracket, ensuring that the arrow is pointing towards the engine end of the car and away from the tank. Install the fuel lines and tighten the hose clamps. Remove the locking pliers from the fuel lines. Lower the car to the ground.

Items you will need

  • Floor jack

  • Jack stands

  • Socket set and ratchet

  • Screwdriver

  • Rags

  • Locking pliers

  • New fuel filter

 How to Install a Fuel Filter in a Golf Cart

Release the pressure on the fuel lines to prevent fire. Locate the golf cart's fuse box and unplug the fuse associated with the fuel filter; check your owner's manual. This will prevent gasoline from causing a fire hazardous situation.

Locate the fuel filter. The fuel filter is not immediately exposed and will require some maneuvering to get to. Use your owner's manual to find where the filter is located.

Disconnect hoses to expose the fuel filter. To gain access to the fuel filter, you must disconnect a number of hoses that cover it. The three hoses that need to be removed are all related to the fuel tank; known as the supply line, the fuel line and the vent line. Use your wrench to loosen and temporarily disconnect these hoses.

Remove the old filter. If you removed the correct hoses, the golf cart's fuel filter should be easily seen somewhere near the opening of the fuel tank. These filters are held in place with a sturdy variety of clamp screws; remove screws using a flat-head screwdriver. Dispose of the old filter in the proper waste receptacle.

Insert the new filter. Place the new filter in same position and use your screwdriver to secure the filter in place.

Return your cart to working order. Use your wrench to reattach the supply, fuel and vent line hoses. Finish this process by reconnecting the fuse to the fuel filter.

Items you will need

  • Golf cart user manual

  • Wrench(s)

  • Flat-head screwdriver

  • New fuel filter

 How to Install a Fuel Filter in a 2003 Chevy Impala

Open the hood for access to the fuse panel. The fuse panel is located behind the battery.

Open the fuse panel by hand and locate the fuel pump relay. Pull the relay out of the slot.

Start the car and allow it to idle until it stalls. This will depressurize the fuel system. Turn the ignition to the "Off" position. Insert the relay back into the fuse panel.

Locate the fuel filter under the car in front of the rear wheel. The filter is cylindrical shaped and is attached to the fuel lines.

Separate the tabs on the inlet side of the fuel filter. Pull the fuel line off the filter.

Unscrew the nut on the outlet line of the filter. Use a second wrench to hold the stationary nut on the filter to prevent it from turning. Pull the fuel line away from the filter.

Unbolt the mounting bracket to loosen the filter from the frame. Slide the filter out from under the vehicle.

Bolt the new filter to the frame. Ensure the arrow on the filter is pointing toward the front of the car. The arrow designates the direction of fuel flow.

Tighten the outlet line onto the filter with a line wrench. Hold the stationary nut with a second line wrench to prevent the filter from turning.

Push the inlet line onto the filter until it locks in place,

Start the car and allow it to idle. The car may not start right away, as there is air in the fuel lines. Turn the key to the "Start" position but do not start the engine. Allow the fuel pump to run for three seconds. Attempt to start the car, as the fuel pump should now have pushed fuel through the fuel lines.

Allow the car to idle for five minutes. Observe the fuel filter for any leaks.

Items you will need

  • Socket wrench

  • Socket set

  • New fuel filter

 How to Install a Fuel Filter in a 1997 Cadilac

Park the 1997 Cadillac on level ground. Remove the fuel cap from the fuel tank.

Jack the rear of the Cadillac up with the jack and put the jack stands under the jacking points on each side of the car. Lower the car onto the top of the stands. Make sure that the car is sitting securely and evenly on top of the stands before climbing under the car.

Climb under the driver-side rear of the Cadillac and locate the fuel filter. The fuel filter on the 1997 Cadillac Seville and Deville model cars is located inside of the frame rail near the gas tank. The fuel filter is a silver canister and will have a quick-connect fuel line on one end and a screw-on nut on the other end.

Slide the gas catch pan underneath the fuel filter to catch the small amount of excess gas that will come out of the fuel lines. Then, compress the end of the quick-connect fuel line with your hand. Squeeze the plastic clips on the quick-connect fuel filter inward and pull the fuel line off the fuel filter.

Turn the nut on the other fuel line counterclockwise with a open-end wrench to loosen the fuel line from the fuel filter. Keep turning the nut until the fuel line is completely loose from the fuel filter. Then, slide the fuel line out of the fuel filter.

Push the fuel filter out of the bracket with your hand. Then, insert the new fuel filter into the bracket with the arrow that is imprinted on the fuel filter facing the front of the Cadillac.

Screw the fuel line nut back onto the end of the fuel filter. Tighten the nut down with the open-end wrench.

Push the other fuel line straight onto the end of the fuel filter until the plastic clips lock to the end of the fuel filter. Then, carefully pull back on the fuel lines to make sure that it is locked on. Remove the gas catch pan out from under the Cadillac.

Put the fuel cap back on the fuel tank. Make sure that the fuel cap is tight.

Sit in the driver seat and turn the key on and off three times. Then, crank the engine and inspect the fuel filter for any fuel leaks. Turn the engine off.

Jack the rear of the Cadillac back up and remove the jack stands out from under the jacking points. Slide the jack out from under the Cadillac.

Items you will need

  • Hydraulic jack

  • Jack stands

  • Gas catch pan

  • Standard open-end wrench set

  • New fuel filter

 How to Install a Fuel Filter on an '87 Honda Accord

Pop open the hood of your Accord and find your fuse box. It should be located on the passenger's side of the car near the front side of your strut tower. Open the fuse box and disconnect the fuel-pump relay. Try to turn your car on. Your vehicle should not start, but if it does turn on, let your engine run until it runs out of gas.

Slide underneath your car on the driver's side of the vehicle. Look for the fuel-filter housing unit. It will be located near the back of the car near the trunk area. One easy way to find the fuel filter is to follow the fuel line from the gas tank until you reach the filter. The fuel filter will be a slender, white, silver or black valve. It should also be connected to the fuel line at both ends.

Use an adjustable wrench to remove the banjo bolt that is attached to the top of the fuel filter. This will disconnect the fuel line from the fuel filter and allow you to remove the filter. On some model Accords, the fuel filter may also be bolted to the fuel rail by a smaller service bolt. If so, use a 6 mm wrench to remove this bolt as well.

Remove the old fuel filter and replace it with a new one. Replacement filters are available at most auto-parts store and can also be purchased online. Reconnect the bolts you removed before.

Go back to the hood of your Accord and reconnect the fuel-pump relay. Make sure it is securely fastened and then turn your car on.

Items you will need

  • New fuel filter

  • Adjustable wrench

  • 6 mm wrench

  • Gloves

  • Protective eye wear

 How to Install a Fuel Filter on a 1990 Honda Accord

Pull the 1990 Honda Accord into a well ventilated location and shut the engine off. Pull the hood latch to open the hood and raise the hood and secure it with the locking rod.

Remove the fuel cap from the fuel tank at the rear of the Accord. This process will prevent gas from spraying when the fuel lines are unscrewed from the fuel filter ports.

Move to the engine compartment and locate the fuel filter on the passenger side firewall inside of the engine compartment. The fuel filter is a black canister that looks like a small oil filter. The fuel filter has two fuel lines coming out of the same end.

Position the drip pan underneath the Accord in the area of the fuel filter to catch any gas that might drip out of the fuel lines.

Remove the two fuel lines from the fuel filter by holding the fuel filter with one hand and unscrewing the fuel line nuts with a metric open-end wrench. Turn the fuel line nuts counter-clockwise to loosen. Finish unscrewing the fuel lines with your fingers.

Unscrew the bracket bolt that secures the fuel filter to the firewall with a metric open-end wrench. Then, pull the fuel filter out of the engine bay and place it in the drip pan.

Lower the new fuel filter into the engine bay and screw the two fuel lines back onto the fuel filter ports. Then, tighten down the fuel lines with the open-end wrench until tight.

Move to the driver side seat and turn the ignition on for about five seconds and turn it back off. Repeat this two more times. This process will fill the new fuel filter with gas and prevent air from getting into the fuel system.

Crank the 1990 Honda Accord and inspect the fuel lines and the fuel filter for any leaks while the motor is running.

Turn the engine off and close the hood. Remove the drip pan from under the Accord.

Items you will need

  • Drip pan

  • Metric open-end wrench set

  • Clean rags

  • New fuel filter- Hastings/HAGF249

 How to Install a Fuel Filter in a 2000 Pontiac Grand Prix

Park the car on firm, level ground. Turn the ignition key off and set the parking brake. Open the fuel filler door and loosen the gas cap. Place the fire extinguisher close at hand.

Don safety glasses. Open the hood and disconnect the battery's negative cable with a wrench.

Clean any dirt from around the oil tube and oil fill cap with a rag. Grasp the oil tube and oil fill cap, then twist counterclockwise to remove it. Lift the front of the fuel injector's sight shield (large plate covering the top of the engine) and then pull the rear tab out of the engine bracket. Replace the tube and fill cap.

Remove the cap on the fuel-pressure connection port located on the fuel rail. Wrap a shop rag around the port, then connect the fuel-pressure gauge to the port. The rag contains any fuel that may spray from the port while the gauge is being connected.

Insert the gauge's bleed hose into the fuel container, then slowly open the pressure valve on the gauge to release fuel pressure. Close the valve once the pressure is released and fuel stops draining into the container. Remove the gauge and the rag. Reinstall the connection port's cap.

Jack up the front of the car with the jack and support it with jack stands.

Crawl under the car. Locate the fuel filter mounted on the frame forward of the gas tank. The fuel filter is a small cylinder with a fuel line connected to each end.

Grasp the hose fitting on the inlet side of the filter and twist it 1/4 turn to loosen any dirt. Blow compressed air on the filter and the fittings to remove dirt.

Insert the quick-connect separator into the inlet-hose fitting and push inward to release the locking tabs. Pull the inlet-hose fitting off the filter. Remove the outlet fitting with a wrench.

Remove the bolt mounting the fuel filter's bracket to the frame. Remove the filter and bracket. Observe the orientation of the filter in the bracket, then slide the filter out of the bracket.

Insert the new filter into the bracket in the same orientation as the old filter. Mount the filter and bracket to the frame. Tighten the bolt to 15 pound-feet with a torque wrench.

Dab a drop of engine oil onto the ends of the filter's fittings. Press the inlet-hose fitting onto the filter until it snaps into place. Pull on the fitting as if to pull it off to be sure it is seated securely.

Install the threaded, outlet-fitting nut onto the filter. Use a back-up wrench on the filter fitting to prevent it from turning, then tighten the outlet-fitting nut to 22 pound-feet.

Remove the jack stands and lower the car. Tighten the gas cap. Reinstall the sight shield. Reinstall the battery's negative cable.

Turn the ignition key to the "On" position for two seconds. Turn the key to the "Off" position for 10 seconds. Turn the key to the "On" position and check for leaks.

Items you will need

  • Dry chemical (Class B) fire extinguisher

  • Safety glasses

  • Wrench set

  • Shop rag

  • Fuel pressure gauge (Pontiac special tool J 34730-1A or equivalent)

  • Fuel container

  • Jack

  • Jack stands

  • Fuel line quick-connect separator (Pontiac special tool J 37088-A or equivalent)

  • Compressed air

  • Engine oil

  • Pound-feet torque wrench

About the Author

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