Sylvie Willis
The fuel filter on a Powerstroke diesel engine can be challenging to remove, and it is important to take precautions to avoid getting covered in diesel fuel. It is recommended to have less than a quarter of a tank of fuel before attempting to remove the filter. To remove the filter, one can use a filter wrench, channel lock pliers, or a screwdriver and hammer to gently tap the cap until it breaks free. After removing the cap, it is important to slowly break the filter cap loose to control the flow of diesel and direct it into a drain pan. Once the filter is exposed, it can be pulled straight up and out of the bracket.
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What You'll Learn
Use a filter wrench or channel locks to twist off the fuel filter cap
To remove the fuel filter cap from your Powerstroke diesel, you can use a filter wrench or channel locks (pliers). This will require some force, but it's important to go slowly and not try to turn it too fast at the beginning. You may need to remove the CAC tube to get enough room to work. If you don't have access to a filter wrench, you could try using two self-tapping screws diagonally across the cap and a screwdriver as a fulcrum to turn it.
If you're having trouble getting the cap off, you can try using a screwdriver and a hammer to gently tap on the cap until it starts to break free. This shouldn't take much force, but it may help loosen the cap. Another option is to use a pair of adjustable wrenches or a 1/2 drive wrench to remove the cap.
Once you start to loosen the cap, diesel fuel will begin to pour out. It's important to do this slowly to control the flow and direct it towards a catch pan or drain pan. Continue turning the cap slowly as the flow starts to decrease. When you finally take the cap off, the flow will be much less, but it's still a messy process.
It's recommended to break the filter cap loose very slowly to avoid getting diesel fuel everywhere. This process can take some time and patience, but it will help minimise the mess and keep the work area cleaner.
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Disconnect the fuel lines
To disconnect the fuel lines of a powerstroke diesel engine, you must first locate the filter. For 2017 models, disconnect the fuel line quick-connect coupling from the in-tank fuel pump. For 2018 models and later, skip this step but be sure that the fuel filler cap is closed before draining the filter.
Next, turn the drain plug counterclockwise until it stops. Do not use any tools to loosen the drain plug. Drain the filter into an appropriate container. You should drain about 0.53 gallons, or 2 litres, of fuel.
Now, disconnect the fuel lines. Do this by squeezing the connector tabs and pulling the lines straight off. Rotate the filter fully counterclockwise until the peg is at the far end of the slot. Pull the filter straight up from the bracket and discard it.
Note that no special air purge is necessary after filter servicing. The fuel system purges the air in the filters.
Some users have also suggested other methods for disconnecting the fuel lines and changing the filter. These include using pinch-off pliers to pinch the rubber line back at the tank, breaking the filter cap loose very slowly, and using a screwdriver and hammer to gently tap the cap until it starts to break free.
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Rotate the filter counterclockwise
To take the fuel filter off of a Powerstroke diesel engine, you will need to rotate the filter counterclockwise. This process can be messy, so it is recommended that you have a low fuel level, preferably under 1/4 of a tank, before you begin. You should also park your truck on an incline, with the nose uphill, so that any diesel that escapes during the process runs towards the front of the truck and not onto you.
To begin, locate the filter. You may need to remove the CAC tube to get enough room to work. You can then use a filter wrench, channel lock pliers, or a pair of adjustable wrenches to rotate the filter counterclockwise. If the filter is very tight, you can try using a screwdriver and a hammer to gently tap on the cap until it starts to break free. Be sure to go slowly, especially if you are breaking the filter cap loose by hand, as diesel will start to pour out and you will want to control the flow.
Continue to rotate the filter counterclockwise until the peg is at the far end of the slot. Once you have reached this point, you can pull the filter straight up and out of the bracket.
It is important to note that, for 2017 models, there is an additional step before locating the filter. You must first disconnect the fuel line quick connect coupling from the in-tank fuel pump.
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Remove the drain plug
To remove the drain plug of your Powerstroke diesel engine, you will need to follow a few steps. Firstly, locate the drain plug. For 2017 models, disconnect the fuel line quick connect coupling from the in-tank fuel pump. For 2018 models and later, ensure that the fuel filler cap is closed before draining the filter, as failing to do so will result in the siphoning of the entire fuel tank when you open the drain screw.
Once you have located the drain plug, turn it counterclockwise until it stops. It is important to not use any tools to loosen the drain plug. This process will allow you to drain the filter, approximately 0.53 gallons or 2 litres, into an appropriate container. Do not reuse the fuel that has been drained from the module.
If you are having trouble removing the drain plug, there are a few methods you can try. One method is to use a screwdriver and a hammer to gently tap on the cap until it starts to break free. Another method is to use a filter wrench or channel lock pliers to slowly turn the cap. You can also try to break the filter cap loose very slowly, which will allow you to control the flow of diesel to some extent.
Additionally, it is recommended to keep the fuel level low, preferably under a quarter of a tank, to minimise the amount of diesel that can spill during the process.
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Bleed air from the system
To bleed air from the system of a Powerstroke Diesel engine, follow these steps:
Firstly, it is important to determine how air entered the system. Air can enter the system in several ways, including running out of fuel, leaks in the fuel lines, or after a fuel filter change. Identifying the cause will help prevent air from re-entering the system.
Next, locate the fuel filter and determine if it has a built-in bleeder screw. If your fuel filter has a bleeder screw, you can use it to bleed the air. If not, you can skip this step and proceed to the next one.
Now, we will discuss two methods to bleed air from the system:
Method 1:
- Disconnect the fuel lines by squeezing the connector tabs and pulling them straight off.
- Rotate the filter fully counterclockwise until the peg is at the far end of the slot.
- Pull the filter straight up and discard it.
- Install a new filter into the filter bracket, turning it clockwise to lock it in place.
- Reconnect the fuel lines.
- Switch the ignition on for 30 seconds and then switch it off. Repeat this cycle six times to purge any trapped air from the system.
Method 2:
- Open the filter drain and perform KOEO (Key On Engine Off) 3 times for 20 seconds each.
- Close the filter drain and start the engine.
- If you pumped air into the fuel rails, it may take some time for the engine to run and remove the air.
- If the engine fails to start, you can bleed the rails at the head plugs.
- You can check for air in the system by opening the filter drain at idle RPM and observing the fuel stream for air bubbles.
Additionally, some users have suggested driving the vehicle at high RPMs for a few miles to force the air out of the system.
Please note that it is important to exercise caution and follow all safety guidelines when working on your engine. If you encounter any difficulties or persistent issues, consult a professional diesel mechanic for assistance.
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