Anyone here have a 2014 F-150 FX4 3.5L? Trying to figure out what’s going on with mine. I think it might be a fuel filter issue, but I can’t even find the damn thing.
Checked the manual, and it basically says, “Lifetime fuel filter integrated with the fuel tank. No maintenance or replacement needed.” So… that’s helpful.
A few tanks ago, I added some Seafoam. Ever since then, the truck has idled a little rough. The other day, it started sputtering and idling at 400 RPM. Yesterday, it completely died. When I tried starting it, it just made a whining sound—like an airplane engine spinning but not actually getting fuel.
Fuel pump seems like the obvious culprit, but before I go through the pain of dropping the tank, busting my knuckles, swearing at the sky, and then rage-shopping for a Chevy, does anyone have any other ideas?
There’s a TSB about a crank-no-start issue on these trucks. There’s a 20-amp fuse for the fuel pump that can melt over time from the current draw. I’d check that first.
Also, yeah—the fuel filter is built into the pump, so if you need a new one, you’re replacing the whole assembly. Another thing to check is the fuel pump driver module. Should be under the bed near the left rear wheel.
Fuel filter is inside the tank with the pump. Ford’s parts website doesn’t list a separate filter—just the full pump assembly. You can enter your VIN there and see every part and diagram for your truck.
Check fuel pressure at the injector manifold—there should be a test port somewhere. YouTube should have guides on that.
If you do replace the fuel pump, I HIGHLY recommend removing the bed instead of dropping the tank. It’s a few bolts, some wiring harnesses, and a couple of buddies to help lift. The bed is surprisingly light, even on steel-body trucks. You can swap the pump in under two hours. Three if you’re drinking beer and talking crap. Again—YouTube it.
Check the fuse first. Then the fuel pump module. Then the pump itself.
If you’ve got the larger fuel tank, running it low often adds a ton of strain on the pump. Also, the float can fail, so you might not even know your actual fuel level. Happened to me in my ‘15 a while back.
Oh, and good luck with Chevy. Every truck has issues—Ford, Chevy, doesn’t matter. They all have their own brand of pain.
Had the same issue with my ‘14. It was the fuel pump module, which is right above the spare tire. Cost me like 20 bucks and took 10 minutes to swap. I eventually replaced the fuel pump too, but that was a year later.
