Changing Fuel Filters: 2006 Ford F-350 Diesel Guide

Changing the fuel filters on a 2006 Ford F-350 diesel is a simple task that can be completed in about 30 minutes. The process involves removing the top filter cap, draining the fuel, reinstalling the drain plug, removing the bottom fuel cap, and replacing the old filter with a new one. It is important to use the correct tools for the job, including a ratchet, a 6mm hex/Allen wrench, and a 35mm or 36mm socket. Additionally, it is recommended to replace the O-rings and cycle the fuel pump at least twice before starting the engine to ensure the new filters are filled with fuel.

The primary fuel filter is located under the driver's side door, on the frame rail

To change the fuel filters on a 2006 Ford F-350 diesel, you'll need to start by locating the primary fuel filter. This is situated under the driver's side door, on the frame rail.

The frame rail is the long steel rail that runs the length of the truck. The primary fuel filter is located on this rail, underneath the truck.

Now, to get started with the replacement process:

• Place a tub or bucket beneath the fuel pump, which is situated under the driver's door on the frame rail.
• On the side of the fuel pump, you'll see a small, brass allen plug. Using a 6mm allen wrench, remove this plug.
• With the bucket in place, completely drain the fuel and water.
• Next, use a 36mm socket to remove the large black end cap, which is situated on the end closer to the engine. The fuel filter will slide out along with this cap.
• Pull out the old filter and the o-ring from the cap, and dispose of them properly.
• Install the new primary fuel filter into the cap. It will snap into place once seated correctly.
• Put the supplied o-ring into position on the end cap.
• Insert the new filter and cap section into the fuel pump, and tighten the cap securely using the 36mm socket.
• Reinstall the allen plug, being careful not to over-tighten or cross-thread it.

And there you have it! You've successfully replaced the primary fuel filter on your 2006 Ford F-350 diesel.

The secondary filter is located on the engine, between the CAC and air intake tubes

The secondary fuel filter on a 2006 Ford F-350 diesel engine is located on the engine itself, between the CAC tube and the air intake tube. The CAC tube is the most prominent aluminium tube in the engine. There are two lids on top of the tubes, which are there to prevent any extra debris from clogging the filters. The smaller of the two lids is the one that needs to be removed to access the secondary fuel filter.

To replace the secondary fuel filter, first remove the black top cap using a 24mm socket or 1/2" square drive ratchet. Then, remove the fuel filter from the housing and the o-ring from the lid. Drain the excess fuel from the housing using a turkey baster and dispose of it properly. Insert the new secondary filter into the housing and install the new o-ring onto the lid. Finally, reinstall the black top cap, torquing the bolt to 124lb. per in. or 10-11lb. per ft.

You will need a fuel filter kit, a bucket or tub, and a coffee can or leak-proof container

To change the fuel filters on a 2006 Ford F-350, you will need a fuel filter kit, a bucket or tub, and a coffee can or leak-proof container. The fuel filter kit should include a replacement fuel filter, which you can purchase from your local dealership or auto parts store. It is important to ensure that the replacement fuel filter is suitable for your specific vehicle. In addition to the kit, you will also need a bucket or tub to drain the fuel and a coffee can or leak-proof container to transport the old filter for disposal.

Before beginning the process of changing your fuel filters, it is crucial to gather all the necessary tools and supplies and carefully review the instructions. Safety should be a top priority when working on your vehicle. Ensure that you have adequate ventilation and wear protective gear, such as safety glasses, to safeguard against any fuel spills or splashes.

The first step is to locate the fuel filters on your 2006 Ford F-350. There are two fuel filters in this vehicle, and their locations may vary depending on the model. One fuel filter is typically found under the truck, near the transmission or fuel tank. Follow the fuel line to identify its exact position. The other fuel filter is usually located on top, next to the EGR valve or in the engine compartment. Refer to your vehicle's service manual or consult a mechanic if you are unsure about the specific locations.

Once you have identified the fuel filter locations, place the bucket or tub underneath the fuel filter to catch any spilled fuel during the removal process. This step is crucial to prevent fuel from dripping onto the ground or any vehicle components. Ensure you are wearing safety glasses to protect your eyes from any unexpected fuel releases.

Now, you can proceed to remove the old fuel filters. First, loosen any hose clamps or mounting hardware connecting the fuel lines to the fuel filters. You may need to use pliers or a suitable wrench to gently detach the fuel lines from the filters. Be cautious not to damage the fuel lines during this process. As you remove the lines, fuel may spill, so it is essential to have a catch pan or rag nearby to minimize any messes.

With the fuel lines disconnected, you can now slide out the old fuel filters from their brackets or housing. Pay attention to the orientation of the filters, as they may have an arrow indicating the direction of fuel flow. Properly dispose of the old filters, ensuring that you follow local regulations for hazardous waste disposal.

Before installing the new fuel filters, compare them to the old ones to ensure they are the same size and have matching nozzles and brackets. This step is crucial to confirm that the new filters will fit correctly and function properly. Once you have confirmed their compatibility, you can proceed to install the new filters.

Position the new fuel filters in the same orientation as the old ones, ensuring that the fuel flow direction is correct. Reattach the fuel lines to the new filters, tightening any hose clamps or securing nuts until they are snug. Refer to your vehicle's service manual or a mechanic if you are unsure about the correct torque specifications for the fuel line connections.

After installing the new fuel filters, it is essential to prime the fuel system and bleed out any air before starting the engine. Turn the ignition to the "Run" position for 30 seconds, then turn it off. Repeat this process two more times to ensure that any air is removed from the fuel system.

Finally, start the engine and check for any fuel leaks. If you notice any leaks, shut off the engine immediately, retighten the fuel line connections, and restart the engine to verify that the leaks have been resolved. Once you have confirmed that there are no leaks, you have successfully changed your 2006 Ford F-350's fuel filters!

Tools required: 36mm socket, 6mm Allen wrench, and a 24mm sock or 1/2 drive ratchet

Changing the fuel filters on a 2006 Ford F-350 diesel requires a few specific tools, including a 36mm socket, a 6mm Allen wrench, and a 24mm socket or 1/2 drive ratchet. Let's focus on these essential tools and their roles in the fuel filter replacement process:

36mm Socket:

The 36mm socket is a crucial tool for accessing and manipulating specific components in your Ford F-350 diesel engine. It is designed to fit securely over fasteners, such as bolts or nuts, with a size of 36mm, allowing you to tighten or loosen them as needed. This particular socket size is commonly used in automotive maintenance and repairs.

6mm Allen Wrench:

The 6mm Allen wrench, also known as a hex key, is an L-shaped or T-shaped tool designed to fit securely into corresponding Allen bolts or screws, which have a hexagonal recess. This wrench size is commonly used in various applications, from automotive repairs to furniture assembly. It provides a precise fit for turning bolts or screws in tight spaces.

24mm Socket or 1/2 Drive Ratchet:

The 24mm socket or 1/2 drive ratchet is a versatile tool that allows you to apply torque and turn fasteners. The 1/2-inch drive ratchet is a standard size that can accommodate various socket sizes, including the 24mm socket. This combination provides the necessary reach and torque for tightening or loosening bolts and nuts during automotive repairs or maintenance tasks.

When changing the fuel filters on your 2006 Ford F-350 diesel, having the right tools is essential. The 36mm socket, 6mm Allen wrench, and 24mm socket or 1/2 drive ratchet are specifically designed for engaging with various fasteners and components in your vehicle's engine, ensuring a smooth and efficient fuel filter replacement process.

After replacing the filters, you must prime the fuel system and bleed out any air

After replacing the fuel filters, you must prime the fuel system and bleed out any air. This is a critical step that must not be skipped, as failing to do so can cause serious damage to the injectors. To prime the fuel system and bleed out any air, follow these steps:

• Turn the ignition to the "Run" position three separate times for 30 seconds each time.
• Start the engine.
• Drive the vehicle through at least 12 short, high-demand cycles (for example, 12 aggressive accelerations from 25 mph to 50 mph). Alternatively, drive the vehicle until crank-time has improved.
• Turn off the engine for 5 minutes.
• Restart the engine.
• If the crank time remains above 2.5 seconds, perform normal hard start diagnostics per the PC/ED manual.

Please note that a three- to five-second crank time may be considered normal in colder temperatures. If this procedure is not followed, it may take more than 100 miles of normal driving to remove all trapped air from the fuel system.

Frequently asked questions