Fuel pump not powering up

Check/Test the fuel pump driver module on left rear of quarter panel-

I don't believe that this is the problem. I have checked it physically and don't see any visable damage. I don't have any info on testing this module. I believe that the fuel pump relay is not energizing and I can't pinpoint why. I know that the relay is energized by the PCM power relay. What tells the PCM power relay to energize?

go to the ineria switch and see if you have power for 2 seconds when the key is turned on.

you also need to test the driver as previously stated for power as well. looking at it is not a test. powers need to be verified. i would start there before proceeding to the relay and controls. the relay is not a common failure as the driver, and pump are common.

Roy

The power goes thru the driver module if it doesn't make it out of there the fuel pump will not come on-period

I have a 1996 ford escort, that recently broke down on me. I was driving and the positive terminal fell off my battery causing it to shake and sputter then stall and not restart. I discovered it was not getting any fuel to it when I spray starting fluid in it it starts. So here's what all I have done since. I replaced the fuel pump but it doesn't seem to be getting power to it because it still wont start. I wired the old one to my battery directly and the old pump came on, so i am guessing that something is disrupting the power to my pump, so I was wondering if I could just wire my new pump to a switch and turn it on and off manually when ever I drove it? Or what else could be causing it to not get power, I checked the fuses and the fuel reset and everything seems okay, I tested the relays under the driverside dash and they seem ok, I am confused and what else to do???

Did you check the Inertia switch in the trunk?
Are you using a fuel pressure gauge?

when that terminal disconnected your system was likely subjected to over-voltage. this is hard on electronic parts. coulda blew somethin.

Possible Causes:

Inertia fuel shutoff (IFS) switch needs to be reset
Open FPDM ground circuit
Open circuit to FPDM PWR RLY
Open FPDM PWR circuit
Open or shorted FPM circuit (engine should start)
Damaged IFS switch
Damaged FPDM PWR RLY
Damaged FPDM
Damaged PCM
Also for Mustang:
Open B+ circuit to the constant control relay module (CCRM) pin 11
Open ground to CCRM pin 18
Damaged CCRM

I have checked the fuel reset switch and it is in the down position, I have not used a fuel pressure gauge because I am not getting any fuel, because I am not getting power to the pump. What would be causing me to not get power, and can I just run a new wire with a toggle switch in line from the pump directlly o the battery?

if you can locate the fuel pump relay check it for ground with key on/crank. if no ground then you could run a permanent/switchable ground. this in more in keeping the system as designed.

Hi.

Just recently (two days ago) I experienced the same issue. Started my vehicle. Made it out the driveway and it cut off. Same scenario as Richardgriffin01.
Replaced pump. Old pump was still functional, turns out no power to fuel pump.
Checked IFS. Reset it and reset it again. All fuses are intact. Looked aimlessly for the location of the actual fuel pump relay. On this specific model, it's 'supposed' to be located in the center console underneath the ashtray, but i honestly don't see it.
Can anyone possibly direct me there? Where is it exactly?

Thanks

Hey Guys,

I found thi diagram showing where the fuel pump relay is located.

Please let us know happens so it will help others.

Best, Ken

the hose in the back by the tank was leaking we replaced it and it started for a minute than would not start againg someone said i problly ruined the fuel pump where is the pump and relay how do i check them

The fuel pump is in the fuel tank, and the relay is under the hood in the power distribution box. As far as the relay, you can just switch it with another one with the same part number to see if that helps. Also, I want you to do the same with the EEC relay to see if that makes a difference.

As far as checking the fuel pump, you need to check it for pressure. Here is a how to for checking it.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Let me know what you find. Also, check to see if the engine is getting spark to the plugs. If you lost both fuel pressure and spark, the EEC relay is most likely the problem.

Joe

This 96 Ford Escort, 1.9 engine, with 139023 miles, was running fine, never had any problems. All of the sudden will not start. Somebody told me to check the FUEL INJECTION relay. I removed the relay and jumped the 12v side to the other side, and the car started ok. I put a NEW relay, no dice. For good measure, I even replaced the FUEL PUMP relay, still nada.
As long as I keep the jumper across the fuel injection relay the car starts ok. Only thing is that it will not turn OFF. I have checked the rollover safety switch and all fuses.
Thanks for any help.

Have you made sure that the rollover safety interlock is working proprerly. This is usually behind a panel inside the right rear fenderwell. I've had to push the red reset button a few times on mine already.

[quote:0e7d60066a="radamesAroman"]This 96 Ford Escort, 1.9 engine, with 139023 miles, was running fine, never had any problems. All of the sudden will not start. Somebody told me to check the FUEL INJECTION relay. I removed the relay and jumped the 12v side to the other side, and the car started ok. I put a NEW relay, no dice. For good measure, I even replaced the FUEL PUMP relay, still nada.
As long as I keep the jumper across the fuel injection relay the car starts ok. Only thing is that it will not turn OFF.
Thanks for any help.[/quote:0e7d60066a]
Yes, I have checked the rollover safety interlock, and all the fuses.

We started out with a no fuel situation. We replaced the fuel pump and fuel pump relay to find out that wasn't the problem. After actually testing the fuel pump relay and finding out that EEC powers the fuel pump relay, We tested for voltage for the EEC relay and no voltage from the ignition was present. The engine cranks but will not start. I've checked the fuses and they seem good. I spoke with a friend about it and he thinks it could be a solenoid fuse link but I can't find one.

ANY IDEAS

Doug

For what liter engine?

The Ford Escort is a 1.9L

check this diagram

Although the diagram and wire color coding is somewhat different than the one I have From Haynes, it promted me to recheck the fuses again. I have power to the fuse box in the engine compartment and none of the fuses are blown and none are blown inside the vehicle. On my diagram it says meter from the I/P fuse panel to the EEC/PCM relay, so I pulled the fuse labeled meter and checked for voltage with the ignition in the on position and found no voltage. On your diagram it said engine from the I/P. I checked that with ignition in the on postion and no voltage. Your help is greatly appreciated.

Doug

is the marked fuse on the diagram hot on both sides

Roy

When I pulled the fuses in the engine compartment and check either side of the prongs, only one side was hot. The inside I/P fuse panel I checked where the plades went in on both sides and no voltage with ignition in the on position. I also checked for continuity between engine/meter fuses to EEC relay and there was a connection on both sides!!!

Doug

I had posted earlier about a rough idle and car died.I changed the fuel filter and now discovered that the fuel pump sometimes runs and sometimes it doesnt.I have a (spare)escort that I took the inertia switch off of and replaced on the car i am having trouble with.The car immediatly started and ran fine.i shut the car off and on several times and it started right back up.Thinking i had solved the problem I was going to drive into town for a test drive when out of the blue,once again,it wouldnt start.I also noticed that i couldnt hear the fuel pump run.I pulled the back seat cushion out,gained access to the pump and pulled it out.I looked for any visual problems and found none.I then hooked it up to a 12 volt source and the pumped worked every time.Ii placed it back in the tank and it worked a couple times and then stopped again.I checked the fuel pump relay and it also checked out fine.what in the world can be the problem? do fuel pumps that go bad intermittently work sometimes or do i have some other problem?

are the connectors to the pump good adn secure in the fitting? does each of those give you aroudn 12v each time?

I found out that there was a service campaign (94B55) that called for fused jumper harness to be installed.Mine had not had this done but the 93 escort i have for parts had it so i installed it and my car actually started and shut off about 8 to 10 times in a row.However this morning once again the fuel pump wouldnt do a thing.I can hear the relay clicking like normal.( i also switched it with the 93).Today i bought a new multimeter and plan to checkout the harness to see if i'm getting juice all the time

I checked the power through the harness and found that it had juice 100 % of the time.bought new fuel pump and seems to be working fine now.The guy at parts store says he has heard of some pumps working intermitently and some just giving up all together.After i pulled this one out it wont work at all now.Thanks for the guidence!

car wont start cant hear fuel pump cycle, wheres the fuel pump relay?

The relay is under the hood. Check to make sure you are getting spark and the fuel pressure is within the manufacturer's recommendations. For directions, go to our home page under the DIY section.

My 1993 Ford escort gt will turn over but will not start. I have replaced the fuel pump, fuel filter, and relay fuse... PLEASE HELP!

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.



Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.


2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.


3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

I have a 1993 Ford Escort and it has intermittent starting problems.
When it does/will start i know because I definitely hear the fuel pump engaging. Also I know when it won't because the sound is not present and the fuel cutoff light is not coming on. My opinion is that it is the fuel cutoff relay but i can't be certain. I also think it might involve a "Saf-T" key that is supposed to be a anti-theft deterrent that when the little key for it is not present then the fuel pump wont engage. But I (thought I) bypassed this by a little rewiring. Unfortunately it still didn't start. Any clues would be appreciated.

Is the security light staying on? Have you checked the fuel pump relay?

Actually the light does NOT come on and yes the relay is not the problem... I think that it is not getting power to the starter and it might be the starter itself. Everything else in the car recieves power though... the radio comes on all the other dashboard lights come on ( ie : e-brake, check engine, Oil, shift indicator )

But is like something is preventing power to go to the starter. and yes i have checked the fuses, both boxes.

Have you checked power to the starter relay?

Fuel pump runs for a split second as the key is turned then cuts out as the key is turned all the way forward. Replaced computer and fuel pump relay. Took out fuel pump to make sure it runs and when it has juice it runs continuously. Engine will not start.

check fuel pump inertia switch, located in left rear quarter panel, behind wheel well, behind trim panel on the SEDAN model

OR

behind left stoplight assembly, inside trim panel on the WAGON model .