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Old May 17th, 2010, 12:59 PM
DIXIE FIX's Avatar

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Default Replacing Fuel Filter

Changing the Fuel Filter on your F150
This is one of the most overlooked maintenance procedures on your vehicle.

Proceed at your own risk. Do not smoke when changing the fuel filter, do not do when truck is still hot

Its advised to relieve pressure on the fuel lines via the inertia switch or unplugging the relay to the fuel pump then running the truck out of gas. I personally don't like either of these methods and do not practice relieving the pressure. I was told by my grandpa to take the gas cap off, not sure what exactly this accomplishes but Ive always done it because he told me too

Wear safety glasses while doing this please

You will need this tool, I've been told it can be done without but for $10 it makes things easier.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic1.jpg" alt="Changing F150 Fuel Filter" />

This is what things look like before you start. Note the safety clip on the end of the fuel line where it mates to the filter. Remove this by squeezing it together and unhooking the small latch. Your new filter comes with new clips, but save the factory ones just in case.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic2.jpg" alt="Changing F150 Fuel Filter" />

After you've removed the safety clip, slide the fuel line away from the filter so you've got enough room to insert the tool. On this particular vehicle, one of the fuel tanks interfered with my using the tool, so I had to slide the filter partially out of the bracket to gain access. No big deal. Push the tool in to the fuel line (away from the filter) and listen/feel for a click to indicate you've disengaged the locking device from the filter
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic3.jpg" alt="Changing F150 Fuel Filter" />

Once you've disengaged, pull the line away from the filter. At this point you'll start getting some fuel draining out. I like to take the dust cap from the new filter and place it over the discharge end of the old filter to control the mess. Try to move the fuel line so that it's raised to minimize fuel leakage from there as well. Some people say if you don't depressurize the lines then fuel will spray everywhere, This is not true the pressure in the lines with the vehicle off is not that great and only causes a small dribble, IVE NEVER EXPIERENCED THIS HIGH PRESSURE SPRAYING OF FUEL.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic4.jpg" alt="Changing F150 Fuel Filter" />

I then moved on to removing the fuel line from the inlet side of the filter, this is the same procedure as removing the other side.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic5.jpg" alt="Changing F150 Fuel Filter" />

Here's the old filter, disconnected and ready to come out, its only being held in by the brackets on the frame.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic7.jpg" alt="Changing F150 Fuel Filter" />

Here is a view of the locking device within the fuel lines. Note the "teeth." These are springs that lock on the raised flange of the fuel filter. When you insert the tool to disconnect, you are pressing in on these springs
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic9.jpg" alt="Changing F150 Fuel Filter" />

When you're ready to install the new filter, insert it into the bracket and press the fuel lines on to the new filter. Just as you felt/listened for a click when removing the fuel lines, listen/feel for a click during installation
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic10.jpg" alt="Changing F150 Fuel Filter" />

After you've hooked the fuel lines to the new filter, install the safety clips and you're done. It's that easy.
<img src="http://www.fordtruckclub.net/forum/photopost/files/1/1/1/fuelpic11.jpg" alt="Changing F150 Fuel Filter" />

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Old May 17th, 2010, 01:36 PM
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Awesome post!

Old April 12th, 2011, 08:26 AM
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good info
changing out 2 today

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Old April 18th, 2011, 08:09 PM
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I've done the one on my stRanger. I did the "bump inertia swith" method, then started the truck to "run dry". No problems with any fuel "spray" just dribbled a little. I didn't have that fancy tool at the time, so my ingenuity came up with using a valve stem cap, cut longitudinally and used to release the aforementioned locking device.

Double(. Y .)Dee
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Old April 19th, 2011, 07:18 AM
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"necessity is the Mother of invention"

I just loosened the fill cap, had a small amount of gas run down my arm (it was NOT under pressure though)

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