I have an early 2017 F250 that gave me a "Low Fuel System Pressure" alarm at ~62K miles. No problems with bad fuel or water in the fuel. I regularly run fuel conditioner to help this out.

After researching several forums and YouTube, I decided my first step would be to change the upper and lower fuel filters to see if they were starving the system. I changed the upper fuel filter with no problem. On trying the change the lower fuel filter, I couldn't get the lower housing void of fuel. It kept flowing diesel and wouldn't stop. I tried all of the tricks I could think of to stop siphoning from occurring, but the diesel just wouldn't stop flowing through the housing. After literally catching 15 gallons of diesel under my truck, I decided to take the truck to the local dealer.

Oddly, every bit of information on the lower fuel filter assembly has the assembly parallel to the frame. My lower fuel filter assembly is perpendicular to the frame.....

The dealer confirmed the low fuel pressure and told me that they had to change the fuel filter assembly (the entire fuel filter assembly) and the fuel pump inside the tank because it was cracked. The service adviser told my that early 2017 diesels did not have a check valve integrated into the lower fuel filter assembly but this new one did and it would fix the problem. Basically, this means that there was a design flaw in early 2017 F250's that Ford later corrected with a design change.

Has anyone else experienced this issue with an early 2017? The total repair cost for this was $2057.72 and this certainly doesn't make me happy with Ford. Ford customer service was contacted multiple times (horrible experience but that's a different story) and they indicated that they are not willing to do anything and that the truck is beyond it's warranty period. I'm thinking this is a Ford design issue that impacts the unimpeded flow of fuel and this is a class action item if Ford doesn't fix it. Crickets from Ford - they promise to contact with a resolution but never do follow up.

 

What was cracked, the fuel pump?

It is true that early 2017's lacked a check valve, I'm not really sure when they were added so it could have been all of 2017 for all I know. Most get around the issue by waiting until the tank is low and then changing the filter. I let mine drop to 1/8th and didn't have any trouble.

 

The fuel pump was cracked. This was the reason for the low fuel system pressure.

 

did you get the old part back? Asking for all parts upon repair helps with these.

I had not heard of these in tank pumps cracking.

Also since you are using an additive, is it possible that a piece of that little cardboard in the cap of the bottle made its way into the tank? That is a known issue.

 

Unfortunately, I did not get the parts back after the repair. The fuel additive that I use does not have cardboard in the cap - this isn't possible in my situation.

 

Glad I know what to expect with my early '17 F350 when its time for a filter change

 

I believe that the check valve was installed in job 2 trucks. Mine at 7k miles triggered a low fuel pressure warning and it turned out to be a defective fuel rail pressure sensor. When changing the filter on early 17's I heard that there is a fuel line at the top of the tank or filter assembly that needs to be disconnected prior to changing the filter to limit the amount of siphoning.

 

How does one know if there truck was part of the job 2 trucks?

 

You know, that's a very good question. I thought that mine showed job 2 on the dealer order form, so I'm sure if you have the dealer run your VIN they would be able to tell you. They should have the cutoff dates. My truck was built in July of 2017.

 

I'm certain mine isn't a job 2 truck. I'm the second owner but mine is a special order that went into service December 2016.

 

I have an early 2017...and have had issues with fuel siphoning during filter changes. I try to run tank low then change fuel filter...diesel in the arm pits sucks!

 

I bet it does. I hate running my fuel tank low but in this case it seems like my only option.