Hyundai Fuel Tank Air Filter: Changing Made Easy

The fuel tank air filter in Hyundai cars is a component of the vapour recovery system, specifically the charcoal canister, which prevents gas vapours from leaking out of the fuel tank. It is located near the fuel tank filler pipe or tube, inside the left rear quarter panel. While some Hyundai owners have chosen to ignore this component, others have chosen to replace it every 30,000 to 40,000 miles, as recommended by the manufacturer. This is a complex task that requires removing the left rear wheel and fender liner to access the filter.

Locating the fuel tank air filter

The fuel tank air filter is typically located somewhere between the engine and the fuel tank. In some vehicles, it may be found inside the fuel tank itself, at the opening of the fuel line. In other cases, it could be located along the fuel line running underneath your car.

For Hyundai Santa Fe models from 2001 to 2006, the fuel tank air filter is situated inside the left rear quarter panel, near the fuel tank filler tube. This information was confirmed by several Hyundai owners in online forums.

Before attempting to locate or replace the fuel tank air filter, it is important to relieve the pressure in the fuel system. You can usually do this by letting your engine run for a short period without the fuel pump functioning. Additionally, make sure to consult your vehicle's owner's manual or a trusted mechanic for specific instructions and safety precautions.

It is worth noting that some Hyundai owners have reported confusion or conflicting information regarding the existence and location of the fuel tank air filter. Some dealership service departments were unsure about the presence of this component in certain Hyundai models. Therefore, it is advisable to refer to your owner's manual or seek guidance from a qualified Hyundai technician if you are unsure about the location or maintenance requirements of the fuel tank air filter in your specific Hyundai model.

Tools required for the replacement

To replace the fuel tank air filter in your Hyundai, you will need a range of tools to ensure a smooth and safe procedure. Here is a comprehensive list of the tools required for the replacement process:

• 12mm socket
• 10mm socket
• 6-inch extension bar
• Pliers
• Flat screwdriver or prying tool
• Flashlight
• Protective gloves and glasses
• New fuel tank air filter

Having the correct tools is essential for a successful replacement. Additionally, it is important to consult your vehicle's owner's manual for specific instructions and warnings related to the fuel tank air filter replacement. This can provide valuable insights and prevent any mishaps.

Before beginning the replacement, ensure that you have carefully read through the procedure and have all the necessary tools readily available. This will make the process more efficient and help you avoid any potential delays or complications.

Step-by-step process to replace the filter

Step 1: Prepare the Vehicle

• Park your Hyundai on a level surface and engage the parking brake.
• Lift the vehicle using a jack and secure it on jack stands.
• Reduce the internal pressure in the fuel lines and hoses.
• Disconnect the fuel pump harness connector at the rear of the fuel tank.
• Start the engine and let it run until it stops.
• Turn the ignition switch to the OFF position.
• Disconnect the battery negative (-) terminal.
• Reconnect the fuel pump harness connector.

Step 2: Remove the Old Fuel Filter

• Remove the two fitting nuts while securely holding the fuel filter nuts.
• Remove the fuel filter mounting bolts.
• Carefully take out the fuel filter from the fuel filter clamp.

Step 3: Install the New Fuel Filter

• Obtain a new fuel filter that is compatible with your Hyundai model.
• Position the new fuel filter in the fuel filter clamp, ensuring it is secure and aligned correctly.
• Reinstall the fuel filter mounting bolts and tighten them.
• Reattach the fitting nuts, ensuring they are securely tightened.

Step 4: Finalize the Process

• Lower the vehicle by removing the jack stands and lowering the jack.
• Reconnect the battery negative (-) terminal.
• Check all connections and ensure there are no leaks.
• Start the engine and observe for any signs of leaks or unusual behaviour.
• Test drive the vehicle to ensure it is operating smoothly.

Note: It is important to consult your Hyundai's owner's manual or a trusted mechanic if you are unsure about any steps or procedures.

Maintenance and replacement schedule

The fuel tank air filter in Hyundai vehicles is part of the evaporative emissions control system, which helps to reduce harmful vapours from the fuel tank and fuel hoses/pipes. It is recommended that you service your Hyundai Tucson every 7,500 miles or 12 months, whichever comes first. This includes a minor maintenance check involving an oil and oil filter change, tire rotation, air filter replacement, and a multi-point inspection.

At 15,000 miles, the following inspections are recommended:

• Inspect Air Cleaner Filter
• Inspect Air Conditioning Compressor
• Inspect Air Conditioning Refrigerant
• Inspect Battery Condition
• Inspect Brake Lines, Hoses and Connections
• Inspect Driveshafts and Boots
• Inspect Exhaust Pipe and Muffler
• Inspect Front Brake Disc/Pads, Calipers
• Inspect Fuel Tank Air Filter
• Inspect Parking Brake
• Inspect Propeller Shaft
• Inspect Rear Brake Disc/Pads
• Inspect Steering Gear Box, Linkage & Boots/Lower Arm Ball Joint, Upper Arm Ball Joint
• Inspect Suspension Mounting Bolts
• Inspect Vapor Hose, Fuel Filler Cap and Fuel Tank
• Replace Climate Control Air Filter (for evaporator and blower unit)
• Replace Engine Oil and Filter

At 30,000 miles, the following services are recommended:

• Inspect Air Cleaner Filter
• Inspect Air Conditioning Compressor
• Inspect Air Conditioning Refrigerant
• Inspect Battery Condition
• Inspect Brake Lines, Hoses and Connections
• Inspect Driveshafts and Boots
• Inspect Exhaust Pipe and Muffler
• Inspect Front Brake Disc/Pads, Calipers
• Inspect Fuel Lines, Fuel Hoses, and Connections
• Inspect Fuel Tank Air Filter
• Inspect Parking Brake
• Inspect Propeller Shaft
• Inspect Rear Brake Disc/Pads
• Inspect Rear Differential Oil
• Inspect Steering Gear Box, Linkage & Boots/Lower Arm Ball Joint, Upper Arm Ball Joint
• Inspect Suspension Mounting Bolts
• Inspect Transfer Case Oil
• Inspect Vapor Hose, Fuel Filler Cap and Fuel Tank
• Replace Climate Control Air Filter (for evaporator and blower unit)
• Replace Air Cleaner Filter
• Replace Engine Oil and Filter

It is also recommended that you replace your fuel tank air filter every 30,000 miles. This can be done by following these steps:

• Remove the carpet from the trunk. Take out the two plastic nuts and remove the styrofoam pad.
• Remove the rectangular access panel by unscrewing the ten 10mm bolts.
• Disconnect the electrical connection from the solenoid valve and detach the hose from the charcoal canister. Then, unscrew the 10mm retaining bolt.
• Disconnect the hose from the fuel tank air filter. This step is easier to do from under the car.
• Remove the fuel tank air filter by wiggling it out and ensuring the valve and hose are clear.
• Unscrew the two 10mm bolts that mount the solenoid valve and hose to the fuel tank air filter.
• Remove the rubber grommet and metal sleeve from the fuel tank air filter.
• Reinstall the new fuel tank air filter by reversing the above steps.

Cost of the replacement filter

The cost of a replacement fuel filter for your Hyundai will depend on the model of your car and the location of the filter. For example, the fuel filter for a Hyundai Santa Fe is listed at $107, while the dealer price is said to be around $123.

The average cost to change a fuel filter is between $90 and $207, with the price varying depending on labour and parts. The cost of a fuel filter replacement for your Hyundai is likely to be somewhere in this range, but it could be more or less depending on the specifics of your vehicle and where you choose to have the work done.

The fuel filter on a Hyundai i30 Hatchback/Fastback, for instance, is said to cost between $120 and $400. This is a wide range, but it gives an idea of the potential costs involved.

It is worth noting that some Hyundai models may not have a fuel tank air filter. It is always best to consult your owner's manual or a qualified mechanic to determine the specific maintenance requirements for your vehicle.

In addition to the cost of the replacement filter, there may be other associated costs, such as labour charges if you choose to have the work done by a professional. It is possible to replace the fuel filter yourself, but it is important to ensure you have the correct tools and knowledge to do so safely and effectively.

Frequently asked questions