I had my fuel filters changed at the dealership today on my '15, and then I bought fuel and headed home (70 miles). About half way home I got a "Low Fuel Pressure" message and a little while after that "Reduced Engine Power" along with the check engine light.


I pulled over to see if they did something like leave the drain open, thinking it might be sucking air. Of course it was dark and I could not see anything. However I did hear a buzzing sound and could feel a vibration when I touched the fuel line going into the top of engine filter.


While it is possible I got bad fuel, I suspect they did something wrong installing the filters. Even after cycling the fuel pump multiple times they had a hard time getting it started afterwards; I think they finally disconnected the top fuel line to bleed the air out.


I continued home and made it, but not sure what to do now; its 70 miles back to the dealer.


What is the most likely problem? Improper fuel filter installation or bad fuel?


Should I pull the filters in the morning see if there is something obvious like an out-of-place gasket? If so, top or bottom filter?


Is this a tow truck affair or should I drive 70 miles back to the dealer?


What the heck is the buzzing sound?


Sorry about all the questions, just trying to figure out what to do.


Thanks

 

I wouldn't mess around with it, short of seeing if fuel is leaking. Maybe look to see if something trivial is wrong. Drive back to the stealership and get them to fix it.

And at the very least, phone them and give them heck for screwing up the job.

 

Bet the fuel filter cover under the truck is loose, they have to be pretty tight or they will suck air in. The first time I replaced mine on my '15 I didn't tighten it enough, but the truck would not prime to start until I corrected it. The buzzing is the fuel pump trying to build up pressure to prime. I read somewhere on here the cap tends to crack when tightened, maybe that's what it is. Some folks keep a spare cap in case.

 

Call the dealer & have them send a tow truck (at no charge to you) to pick the truck up & fix it. They did something wrong, it is up to them to fix it.

 

Thanks guys! Will theCEL, “Low Fuel Pressure” and “Reduced Engine Power” clear on their own if I solve the filter issue?

At this point I’m inclined to call the dealer and have them send a tow truck to clean up their mess. Problem is it will cost me at least a day of my time, probably a rental,a real pain in the rear.

 

Those codes should clear when the condition is corrected. I do my own fuel filters at about 1/3 the cost that the dealership charges. I bought a double socket that fits the two caps and buy my filters (OEM Ford) on Amazon.com for about $45 shipped to my door. The filter change takes about 20 minutes to do.

 

I totally concur X2

 

Yes, the dealer 'screwed up' and either didn't tighten the housing to the positive stop or left a 'O' ring seal on then added a second one.

As far as changing your own filter - I strongly encourage you to have a spare twenty buck cap on hand first as well as use a strap wrench instead of that cast on flimsy plastic 32 mm nut. Twist that nut off and you will quickly learn how much fuel leaks out before you can figure out how to loosen the cap 3 turns and shut off the check valve. A smelly, long lasting diesel fuel bath is not fun.

Here's a little reading 'enjoyment' from my experience with that plastic fuel filter cap: https://www.ford-trucks.com/forums/1...y-a-spare.html . On the 3rd page of that attachment is what I now have for my insurance purposes for changing the fuel filter.