2013 6.7 F350 13,500 miles
Changed the fuel filters and got them bled out and truck runs OK but have a whining noise from the engine compartment fuel filter area.
BC

 

Did you use OEM filters? Other than that can't think of any reason a fuel filter change could create a noise with out leaking.

 

If confirmed oem filters were used, I think I would disconnect and reconnect them both and then bleed and try again.

 

That happened to me the last time I changed my filters. I did use OEM filter. The whine stopped after a few engine starts.

 

I leave her at home... Then there is no whine...

 

I've changed the fuel filters a dozen times since 2010 and I have to say, the last time I did it, which was last month, it took FOREVER to purge the system. I've never had any issue.

So, I wonder if something changed but I can't figure what.

I literally spent 20 minutes doing the key on/off cycle to listen for the purge to be complete. I tried to start the engine twice and it would not start. It took me a solid 40 minutes to get the purge done.

Might just need to keep going beyond the point of reason, which is the only thing I could do.

 

Its infuriating, and I think it has nothing to do with filters.

 

Used OEM filters
This was the 1st change in 13,500 miles and the housing for the water separator filter was quite tight
Will run it and see what happens - from what I have seen on Utube Videos the noise could be from sucking air at the separator area and showing up in the secondary filter
Has to be related to the filter change
BC

 

Did you change the O-ring on the primary filter housing? Maybe it has a tear and letting air in?

 

I've had that happen with the dfcm under the truck. After pulling the lid and re lubing the oring it went away. If yours still does it after that then I would replace the oring it might be damaged. Since this happened I started heavily coating that oring with petroleum jelly every time I re install it.

 

use diesel motor oil on the O-rings when putting together.

 

It snowed several inches last night but I got the insulates on , made a better tool to 'hook' the o-ring on the separator housing , started truck and moved it to drive up on ramps. Kind of cold 18 degrees so drove up the road to warm things up before crawling under. Several miles later ---- no more noise.
Who knows , must have healed it self over night.
BC

 

Funny you mention this because I changed my filters on Saturday and the whining, squealing, screeching noise went away. The only difference was two new filters.

By the way, I just had the recall done a couple of months ago and noticed that the fuel pump when turning the ignition key to ON no longer shuts off after a few seconds. I used to have to cycle the key 6 times (as per the manual) and this time I just let the pump pump away for about 15ish seconds. Worked like a charm. Anyone confirm a software change that keeps the fuel pump running on KEY ON?

 

Epic- My 2013 F350 fuel pump keep running in the 15 to 20 second range with key on and engine off. Not had any reflashes done that I know of. The noise problem , I believe , is definitely related to air entering the fuel system at the separator 'O' ring. I didn't oil it on assembly and the air entered where the O ring was stretched and pulled when the housing was screwed on. After sitting and some temperature changes the O ring 'settled' in to its operating position.

 

On my sig truck, the pump will run for 30 sec at a time per key cycle. I still have to go through at least 6 cycles to purge all of the air out of the system, but I use the noise on the return line back to the tank as my cue for being fully purged. I am usually more like 10 key cycles to complete and never have whining from the fuel system or trouble starting afterward. It is very important to have the o-ring properly seated in its channel, and to tighten the bowl until you hit the stops.