Mercedes Mullins
Water in the fuel filter is a common issue for Ford Transit owners, and it is important to know how to drain the water to avoid damaging the engine. According to the Ford Transit manual, a warning should appear on the dashboard when the fuel filter needs to be drained. However, some Transit owners have reported that this warning does not always appear, and it is necessary to check the fuel filter regularly to avoid water build-up, which can cause black algae to grow in the fuel tank. Draining the water from the fuel filter requires several steps, including stopping the vehicle, shutting off the engine, and locating the diesel fuel conditioner module. A step-by-step process must be followed to ensure the water is drained properly and the engine can be restarted.
How to drain water from the fuel filter of a Ford Transit
| Characteristics | Values |
|---|---|
| When to drain water | When you see a warning on the dashboard |
| Every oil change | |
| When you see water in the fuel filter | |
| How to drain water | Stop the vehicle and shut off the engine |
| Locate the diesel fuel conditioner module | |
| Place an appropriate container under the drain port | |
| Rotate the drain counterclockwise until the O-ring is visible | |
| Allow the diesel fuel conditioner module to drain for 25 seconds or until clean fuel is observed | |
| Rotate the drain clockwise to tighten it | |
| Restart the engine | |
| If the warning continues, have the fuel system checked and repaired | |
| Notes | A loose drain valve can allow air to enter the fuel system and cause drivetrain issues |
| With fuel tank levels above 3/4 tank, it may be necessary to loosen the bowl 3 turns before opening the drain | |
| Do not store biodiesel in the Transit fuel tank for longer than one month |
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What You'll Learn
Draining the fuel filter water trap
Step 1: Park your vehicle on level ground and shut off the engine. It is important to ensure the vehicle is secure and stable before proceeding.
Step 2: Locate the diesel fuel conditioner module. This module is typically found underneath the vehicle, on the driver's side, just ahead of the rear axle. Place an appropriate container under the drain port to catch any fluid that will be drained.
Step 3: Rotate the drain counterclockwise to open it. You may need to loosen the bowl by turning it counterclockwise a few times before opening the drain. This step is important to prevent fuel from siphoning out of the tank.
Step 4: Allow the diesel fuel conditioner module to drain. Depending on the amount of water and fuel in the trap, this process can take approximately 25 seconds or until clean fuel is observed. Keep an eye on the container to ensure it does not overflow.
Step 5: Once the desired amount of fluid has been drained, rotate the drain clockwise to tighten it. Ensure that the drain valve is fully tightened to prevent air from entering the fuel system, which can cause drivetrain issues.
Step 6: Remove the container from under the vehicle and properly dispose of the drained fluid. It is important to handle the drained fluid responsibly and according to local regulations.
Step 7: Restart the engine. If a "WATER IN FUEL DRAIN FILTER" message or warning light continues to appear, there may still be water in the system. In this case, it is recommended to have the fuel system checked and serviced by a qualified mechanic or dealer.
It is important to note that regular draining of the fuel filter water trap can help prevent issues with the fuel system. Some sources suggest draining it at every oil change or keeping the fuel tank full to minimize condensation. Additionally, treating the fuel tank with an algaecide once a year can prevent the growth of black algae, which is caused by water in the fuel.
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Locating the diesel fuel conditioner module
To locate the diesel fuel conditioner module, first stop your vehicle and shut off the engine. Place an appropriate container under the drain port. Next, rotate the drain counter-clockwise until the O-ring is visible. The diesel fuel conditioner module is mounted between the inboard side of the fuel tank and the frame rail. It is on the left-hand frame rail.
The second fuel filter is inside the diesel fuel conditioner module. Regular fuel filter changes are an important part of engine maintenance. Failing to keep up with scheduled maintenance could lead to engine performance issues and fuel injection system damage.
To drain the diesel fuel conditioner module, turn the drain plug counter-clockwise until it stops. Do not use any tools to loosen the drain plug. Drain the filter—approximately 0.5 gallons or 2 litres. Allow the diesel fuel conditioner module to drain for approximately 25 seconds or until clean fuel is observed. Rotate the drain clockwise to tighten it. If no liquid drains, there may be a clog in the drain. Have the conditioner module serviced by an authorized dealer.
Make sure that you fully tighten the drain valve and then remove the container from under your vehicle. Restart the engine. If the "WATER IN FUEL DRAIN FILTER" or "WATER IN FUEL DRAIN FILTER SEE MANUAL" message and light continue to illuminate, have the fuel system checked and repaired.
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Removing the filter housing
To remove the filter housing, you must first stop your vehicle and shut off the engine. Then, locate the diesel fuel conditioner module and place a suitable container under the drain port. Rotate the drain counter-clockwise until the O-ring is visible.
Allow the diesel fuel conditioner module to drain for around 25 seconds or until clean fuel is observed. Then, rotate the drain clockwise to tighten it. If no liquid drains, there may be a clog in the drain. Have the conditioner module serviced by an authorized dealer.
Make sure that you fully tighten the drain valve. Then, remove the container from under your vehicle. Finally, restart the engine. If the 'WATER IN FUEL DRAIN FILTER' or 'WATER IN FUEL DRAIN FILTER SEE MANUAL' message and light continue to illuminate, have the fuel system checked and repaired.
Note: With fuel tank levels above 3/4 tank, it may be necessary to loosen the bowl by three turns before opening the drain. This will activate an anti-siphon valve at the fuel and water separator inlet and prevent the fuel from siphoning out of the tank. A loose drain valve can allow air to enter the fuel system and cause drivetrain issues. The engine will not operate properly. Be sure to fully tighten the drain valve.
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Restarting the engine
To restart the engine, the first step is to make sure that you have fully tightened the drain valve. Then, remove the container from under your vehicle.
Next, restart the engine. If the "WATER IN FUEL DRAIN FILTER" or "WATER IN FUEL DRAIN FILTER SEE MANUAL" message and light continue to illuminate, have the fuel system checked and repaired.
If you are experiencing issues with restarting the engine, it may be due to air in the fuel system. The Ford Transit is known to be sensitive to air in the fuel system, so it is important to ensure that the fuel cap is secure and that no air is entering the system during the draining process.
If the issue persists, it may be necessary to replace the fuel filter with a new, genuine Ford filter and fill it with fresh diesel fuel. Once the new filter is installed, hold the revs at around 1500 to bleed the system.
It is also recommended to treat the fuel tank with an algaecide once a year, especially in high yearly mileage vehicles, as water in the fuel can cause black algae to grow, leading to frequent fuel filter changes.
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When to drain the fuel line water filter
Water in your fuel system can cause significant damage if left unaddressed. Over time, moisture can accumulate in your fuel tank, leading to water in your fuel filter. This water can corrode the filter, reduce fuel efficiency, and even cause engine failure.
To maintain a healthy fuel system, it is essential to know when to drain water from your vehicle's fuel filter. While some drivers report rarely or never checking their fuel filters for water, others suggest inspecting them every month or after 10,000 miles, as recommended by manufacturers. Adhering to these recommendations can help keep your engine running smoothly and prevent water-related damage.
It is crucial to be vigilant, especially during seasonal changes, as colder temperatures increase condensation inside the fuel tank, leading to more water entering the fuel system. Common signs that it's time to drain your fuel filter include a sluggish engine, difficulty starting, or a noticeable drop in fuel efficiency. If you notice any of these symptoms, check your fuel filter for water accumulation to prevent further issues.
The process of draining water from your fuel filter is straightforward. First, gather the necessary tools: a clean container, a wrench or screwdriver, and a pair of gloves for safety. Then, locate the drain plug or petcock at the bottom of your fuel filter. Place the container underneath to catch the water and slowly loosen the plug, allowing the water to drain out.
By understanding the importance of draining water from your fuel filter and knowing when and how to perform this task, you can ensure optimal performance and longevity for your vehicle's fuel system.
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Frequently asked questions
First, stop your vehicle and shut off the engine. Then, locate the diesel fuel conditioner module and place an appropriate container under the drain port. Rotate the drain counterclockwise until the O-ring is visible. Allow the module to drain for approximately 25 seconds or until clean fuel is observed. Finally, rotate the drain clockwise to tighten it.
According to the manual, there should be a warning on your dashboard telling you when to drain the water. However, some users recommend draining the water from your fuel filter at every oil change.
If you don't drain the water from your Ford Transit's fuel filter, you may experience issues with your engine. Water in the fuel filter can cause black algae to grow in your fuel tank, which can lead to frequent fuel filter changes. Additionally, water in the fuel filter can indicate that there is a problem with the fuel system, which may need to be repaired.
If your Ford Transit's fuel filter won't drain, there may be a clog in the drain. In this case, it is recommended to have the conditioner module serviced by an authorized dealer. Additionally, if the "WATER IN FUEL DRAIN FILTER" message and light continue to illuminate, you should have the fuel system checked and repaired.
