Fuel pressure

The truck died can hear the fuel pump come on pulled the fuel filter off fuel came out & stopped, bought a pressure tester read 25 psi also can not get spark.

Thanks will try & let you know the results

Fuel pressure is good timing is on and have a good spark

I have had a new fuel pump installed. The system is a non return system with the fuel pressure regulator in the fuel tank. The truck does not start immediately after being shut off for a few minutes. It starts and runs but the gas mileage has dropped by over twenty percent. Cannot seem to get rail fuel pressure over 50 psi. Specs indicate I need 56 PSI minimum. Does the fuel pressure damper have anything to do with this?

Prior to replacing the fuel pump (required due to pump failure) the engine ran fine with consistent 15 to 17 mpg depending on type of driving. Have been trying everything I can think of or google. Any ideas?

The tag in the door frame indicates US manufacture which is consistent with theVIN number starting with one. In my research, I found references to it being a non return system. I believe this is correct as there are three connections to the fuel filter. Two at the back which connect to the pump. I believe these are the supply line and re circulation. Then the one going to the fuel rail. The new pump is an Airtex model E2270S. The shop manual I have gives the fuel pump pressure spec as 64 +/- 8 PSI.

I have changed it as well suspecting it was part of the problem. I use the Ford workshop manual I picked up on E-bay about seven years ago.

Fuel pressure on 2007 ford ranger

64K on the truck, auto-trans delivery truck for our business. 2.3L 4 cyl. AC. The fuel pressure falls on it's face sometimes. We have been fighting this off and on over 6 months. We have put 3 pumps in it. Fuel filters etc. The pressure measured at the port on the rail is about 65-70psi when the problem shows up it goes down to 15. The system is return-less. Two lines go into one end of the fuel filter, one goes out the other end to the fuel rail. The fuel pump assembly has a regulator on it that is inside the tank. I know BMW's and Porsche's very well. But this POS is really throwing me. Our first pump died because of junk in the tank. It was 100% cleaned out and filters swapped (and cut open to look for goodies). We have done the oblivious.

Photo of the first pump.

I was told the voltage was checked. I will have to check it myself to be sure. Believe it or not, this is the second new pump installed. Due to the problem, I had the first replaced with a second. Problem remained. I picked up the idea somewhere that the pump controls pressure by varying the speed or somehow pulsing the pump. I am wondering where the signal comes from and how to check this. Have you ever run into anything like this? Am I misunderstanding something?

Just wanted to add that I am appreciating your input regarding my dilemma. I have been working on this problem for about four to five weeks and have checked and changed anything I could find might be the problem. Thanks again for taking the interest.

We have tested for that one. And it's never made a sucking sound when taking the cap off. We did try and run the cap loose to test for that a few months ago, and it just kicked on the check engine light.