Fuel pump is not getting power?

Hi,

I traced out the wiring for you below.

Here is what I need you to do first. Check the ECM B fuse in the under-hood fuse box. In addition to checking the fuse, make sure there is power to and from it.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If that is good, remove the fuel pump relay. On the relay itself, you will see a number identifying each pin. Locate pin 30 and pin 87. Then, take a jumper wire and jump the two pins I mentioned. By doing this, you will be sending power directly to the fuel pump. This is a test to see if the pump itself may be an issue.

Do these two tests and let me know what you find.

Take care,

Joe

See pics below.

Hi Joe,

Man, it's appreciated but give me a minute to work on the van it's going to be a couple days I will be in touch.

I wanted to add the fuel pump has been changed since this last Friday. But not the wiring connector wasn't changed. It cranks but there is no sign of the fuel pump turning on.

Hi:

You are very welcome and take your time. Let me know what you find when you have a chance. Also, let me know if you have other questions.

Take care,

Joe

Hi man,

It has been a minute but it's running the van it's sputtering from 10 MPH to 25 MPH then smooth at times in reverse it runs fine.
Long story short it was a wire under the driver's seat, and it started right up.

But is it possible for you to get me a diagram to the fuel pump gas lines to be sure they are all going in the right direction?

Joe, man, hope everything is wonderful on your side.

Hi,

The only pic I have is attached below (very generic). Let me know if it helps, and by the way, I'm glad to hear you got it fixed. Good job.

Let me know.

Joe

See pic below.

30 has power 87 has power 86 has power for 2 seconds then stops with key on . Any ideas?

Hi Joe, man, it's the van again not starting when I test with 85 fuse the EGR valve clicks but van not starting fuel pump is just clicks.

Hi,

Welcome back. This isn't good news. LOL As far as the clicking when trying to start it, do you mean the starter just clicks? If so, take a look through this link and let me know if it helps:

https://www.2carpros.com/articles/starter-not-working-repair

If it isn't the starter, let me know. Additionally, let me know if you checked for diagnostic trouble codes.

Take care,

Joe

It's late but man it's turning over but not starting . The fuel pump makes no sound just a click and engine turning over.

Afternoon Joe, man, I'm here with the van turning over not starting don't hear fuel pump. It's not starting no codes on obd2scanner. Any ideas?

Hi,

Have you checked or switched out the relay? Just as a confirmation, does it start if you use starting fluid and then stall?

Let me know.

Joe

Yes, switched relays it's just turning over fuse blew when jumping it ECM b fuse and ECM 1 fuse when starting it I think I'm going to look under the PCM and ECM is there a diagram for wiring.

Hi,

The wiring schematic that includes the PCM is tied into the powertrain management circuit and is four pages long.

I attached the entire schematic below. However, to make it readable, I had to cut each page in half. I did overlap them so you can follow from one to the next. Additionally, I highlighted the wiring related to the two fuses that failed and indicated the location of the fuel pump relay.

The PCM is located on pages one and four in the manual. Therefore, they are pics 1 and 2 below and pics 7 and 8 because I cut the pages in half.

Let me know if this helps.

Joe

See pics below.

Sweet thanks a bunch.

One more diagram the fuel pump wiring harness I think the wiring may be connected improperly. I see an orange wire on it. I'm not sure that it goes to the fuel pump. I'd need a diagram to be sure.

Hi,

At the pump, there should be three wires, black, gray, and purple. Where are you seeing an orange wire? Can you tell where it is coming from?

Joe

See pic below.

The fuel pump connector piece goes to 4 wires the orange wire from the connector went to the grey wire, I think. I'll get a picture or the connector tomorrow.

Hey Joe good afternoon. This was the fuel pump connector piece that was on there I replaced it the same way and I think that's the issue.

Hi,

That isn't even the right connector. It should be square, so someone was certainly into it. Is the connector in the fuel pump itself work with this connector?

You indicated the orange wire was tied into the gray. Here is my dilemma. I'm not sure what the person did or set things up. I have factory information, but this isn't a factory connector. I attached a pic below of the connector.

Let me know.

Joe

See pic below.

It's the same one that came with the fuel pump maybe a color or 2 different it has connectors. here's a picture.

The new connector works and fits it.

I believe it's wire wrong like you said.

Do you get battery voltage at the orange wire? (I believe you said it is connected to the gray wire.)

Also, is there continuity to ground via the black wire?

Joe

Yes, the orange wire set to be grey wire would be the 87 on the relay. All power is there even the 85 cones on for 2 seconds and stops.

Joe, what do you think I should do disconnect the fuel pump wires and only plug in the 3 wires instead of 4.

Then man does it show and ground connections to the frame for the fuel pump?

Hi,

The ground for the fuel pump is G103. It is located at the rear of the right cylinder head. That would (should) be the passenger side. I attached the schematic below.

Let me know.

Joe

See pic below.

Key off on negative 30 is on ground nothing on the others off.. key off.... on positive 30 is off 87 on 86 is on 85 off. Turn key 30 is off 87 on 86 on 85 2 seconds then off.

Hi Joe, happy Friday, that's where I'm at the connector is right with grey to grey, purple to purple black to black with stripe to the same every is connected right. I'm going to open the PCM to see if it's going to be what it's supposed to be.

The first paragraph is the power from the fuel pump relay. As of right now, is the right let me know please.

Hi,

The power from the relay should be the gray wire. As far as what you are finding, it does sound correct.

I'm sorry for the delay in getting back to you. It has been a rough couple of days.

Take care and I hope you have a Happy Easter.

Joe

Hey Joe happy Easter. I was wondering does the van have an inertia switch?

Hope all is well with you.

Hi,

The van doesn't have an inertia switch. Ford uses them and not GM. On a GM, the ECM is what controls power shut down to the pump.

Joe.

Joe man happy Monday well I'm going to replace the ignition coil and I've cleaned the PCM it had brake fluid in it heavy and did some soldering too repair. We need it this weekend for big family events this Sunday.

Is there anything you can think of that may help get it started?

Hi,

I'm not sure what to add. It sounds like you have done a lot of work. Let me know how things turn out for you.

Joe