I drove the car last night parked it and this morning went to start acted like it was going to twice and then would shut off a second later. Noticed no lights on dash except for battery oil and airbag. The digital display that is normally there does not come on and which is what controls a lot of things. I have pulled every fuse out checked and replaced. Security system recognizes key and will crank but no fuel in fuel rail. What would be my next step?
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Thursday, February 21st, 2019 AT 9:32 AM
29 Replies
ASEMASTER6371
MECHANIC
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Good morning,
Can you hear the fuel pump run when you turn the key on?
I would do a fuel pressure test to see if the pump has failed.
The pump is not turning on and I'm thinking cause of the display it gives miles to empty and all the warnings to the car. Also the lights on dash wont turn on.
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Thursday, February 21st, 2019 AT 9:50 AM
ASEMASTER6371
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Okay, I would start by load testing the battery and cleaning the cables to be sure sufficient voltage is getting to the car.
Roy
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Thursday, February 21st, 2019 AT 9:56 AM
JWR2009
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Brand new battery, just bought after this happened.
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Thursday, February 21st, 2019 AT 10:00 AM
ASEMASTER6371
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I attached a wiring diagram of the system. There is a power relay in the fuse block under the hood that provides power to all the accessories. You need to verify voltage to the relay to see if it is working.
Did you verify power to the fuel pump?
Roy
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Thursday, February 21st, 2019 AT 10:09 AM
JWR2009
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No way to test power to fuel pump, but no sound from kicking on and off. I am calling around the digital display that is not coming on is the message center it is wired into all light and warnings. We are thinking the computer had failed.
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Thursday, February 21st, 2019 AT 10:30 AM
ASEMASTER6371
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It is possible but an expense guess.
You need to get a volt meter or test light to do some checks so you can be sure what you are replacing is the failure.
Roy
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Thursday, February 21st, 2019 AT 10:44 AM
JWR2009
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Okay, my dad pulled it apart I have power to inertia switch to fuel pump module nothing after that. It's supposed to have power to white with red and ground is black with yellow but no power there. I can't see the diagrams very well about the yellow with something that goes to fuel pump then virtual dash. Is there a way to test if module is bad or if I can put power past it to see if I can get fuel pump to run so I know where to start?
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Tuesday, March 5th, 2019 AT 7:08 PM
ASEMASTER6371
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Yes, you can run direct battery power to the pump and see if it runs. If it does then the module is the issue. If it does not, then the pump is the failure.
Roy
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Tuesday, March 5th, 2019 AT 11:25 PM
JWR2009
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Okay, been a week or so I have changed fuel pump module jumped, the fuel pump it runs so not pump. Changed PCM nothing made difference only lights on dash is oil airbag and battery light will crank does not fire.
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Friday, March 22nd, 2019 AT 10:19 AM
ASEMASTER6371
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Why did you change the PCM?
Did you have t flashed to your VIN? Without that being done, it will not work.
Did you check for voltages at the plug as I suggested?
Roy
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Friday, March 22nd, 2019 AT 10:28 AM
JWR2009
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I jumped fuel pump out and it ran and wouldn't start, so I bought fuel module and it still is the same. Nothing changed and the PCM does it have to be flashed even off identical car? With electrical I am at a loss with all the electrical in the car.
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Friday, March 22nd, 2019 AT 10:32 AM
ASEMASTER6371
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You need a voltmeter for further testing.
Roy
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Friday, March 22nd, 2019 AT 11:10 AM
JWR2009
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I have one in car we have tested to see if power to fuel module. Here is where I am stuck at there is a digital display that is in dash and it stopped working sane time from the wiring diagram above I see that it goes through the fuel pump module for power and its not getting it to work which is yellow/white wire so I am stuck with that it has to do with that not working cause as of right now with fuel pump kicked on will not start.
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Friday, March 22nd, 2019 AT 11:22 AM
ASEMASTER6371
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Are you saying the fuel pump is now running?
If it is, can you test the pressure?
Roy
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Friday, March 22nd, 2019 AT 12:01 PM
JWR2009
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We jumped the fuel pump out so it had power and tried to start car we did not check pressure because the fuel module was not allowing the power to the fuel pump in the first place so I replaced thinking maybe it was fried and was not allowing power to get to fuel pump and now that is not the case we was thinking PCM or something along those lines cause the digital display and the module not getting power to turn pump on this weekend I am going to see if it is giving spark now because before when I tried right after this problem started it ran for couple seconds now it wont even do that. I am trying to find a diagram of everything that is tied into the fuel/display that stopped working so far all I see is that module in fuel system but has to be further tied in.
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Friday, March 22nd, 2019 AT 12:08 PM
JWR2009
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So as far as control modules what are the list of them I tried to zoom in on wiring diagram and it gets to blurry to read is there just a PCM? Or is there multiple ones that control fuel and spark?
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Friday, March 22nd, 2019 AT 12:09 PM
ASEMASTER6371
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Why did you change the PCM?
Did you have it flashed to your VIN? Without that being done, it will not work.
Roy
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Friday, March 22nd, 2019 AT 12:11 PM
JWR2009
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Was a guess cause it is not turning on fuel module and that was the next thing in line if not going through there it will never turn on the fuel pump. Does the PCM have to be flashed to VIN if pulled from another Lincoln Continental with exact options as mine? This is the first time replacing a computer normally I would sell vehicle and find another but not currently in the situation of doing that.
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Friday, March 22nd, 2019 AT 12:20 PM
ASEMASTER6371
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Yes, it does. It will not turn over with a used unit. It needs to be flashed to your VIN number.