I have continued to try and troubleshoot this today. I went ahead and spent the money on new fuel filters. The main fuel filter was actually stuck to the pump, not the lid like when I installed it. The filter was also quite dirty. This, however, did not solve the problem. I am going over the no start check list one more time before my surgery tomorrow. My son was in the garage with me as I was priming the engine after the filter change and said that he could hear running water (fuel) while standing by the fuel tank after I turned the key off. Is this normal? And now, all of the sudden I'm not reading my almost full tank at the dash. The gauge is suggesting the tank is empty, but I only have 75 miles on this tank. My Torque app shows 84.4% fuel level. I tried to "borrow" a fuel pressure tester from Auto Zone but could not afford the $150 rental fee at the moment. I have a pressure tester, just not the adapter. I'll be in the garage for a few going over the checklist again.

 

I verified the sound my son heard. While fuel pump is running you can hear something almost like a gurgle or sucking sound coming from tank. Nothing heard after pump disengages.

 

Can I post a video here?

 

How did the surgery go? You probably aren't in any shape to have done anything else, but any updates?

Would love to see/hear the video of the fuel tank sound. I don;t know about posting videos here, but I think you can. You could also put it on youtube and post the link.

 

Hi Mark. Thanks for checking in, surgery went good .

Update, I finally got the fuel pressure adapter today and I'm thinking fuel pump. My pressure KOEO is about 52 psi. As soon as pump cuts off the pressure drops to 0. What do you think?

 

That would be a problem! You can change the pump out pretty easily by itself (and fairly cheaply). However, sometimes the internal filter and water part is pretty gummed up from sludge and junk. If that is the case, some people bite the bullet and buy the whole HFCM. I can post part numbers if you need them. Ford does not sell the pump by itself, but Racor (the original Manufacturer of the pump) does.

btw - what branch of the service were you in?

 

$300 later and I have a fuel pump. We'll see here in a few what happens.

I am retired Army.

 

Hope it is all you need, and thank you for your service!

 

Thank You Mark

So after swapping fuel pump out I now have 0 pressure and no fuel to secondary bowl. I can hear the fuel pump running and it sounds like it's not getting fuel. I seem worse off then I was before.

 

Disconnect the pump suction line and run a hose from the pump suction line down into a bucket of fuel and see if you can pump from that.

 

I'm working on that. What if the supply line is plugged up somehow?

 

Very little suction coming from pump.

 

Could you have gotten one that was bad in the box? Can you return it?

The pump alone is $120.

 

Comes with 1 year warranty so I could. It's a Delphi from AZ. I have help today since I'm one armed so bought what they had.

 

I am not sure what to make of this information. Can you confirm the fuel level? When you say you only have 75 miles on the tank, I assume it was after a fill up. Can you be sure the tank was full after the last fill up?

I hate to be so unsure, but in the first post you seemed to confirm the fuel pump was OK (except it is always good to know the pressure). Then later, the KOEO pressure being at 52 psig indicated the pump to be weak. 45 psig is Ford's absolute minimum (for injector health), but 50 psig is a more conservative minimum. That seemed to indicate a pump problem or maybe a regulator problem (52 psig would not have maintained the 50 psig minimum at WOT). But maybe the very first fuel flow test (in your first post) gave false information. It sure indicated that this tank of fuel was good enough to flow properly. Now, it seems to be questionable.

Lets stick to numbers until we get some confidence in a few things. When pumping out of the bucket (KOEO), what fuel pressure do you see? Can you run a hose from the fuel pressure regulator back into the bucket and verify that it can flow freely? What pressure do you get when you do that? Also, are you measuring the fuel pressure at the fuel pressure test port on the regulator?