No fuel flow | Ford Escort Owners Association (FEOA)

No fuel flow

Discussion in '2nd Gen 1991-1996 1.9L SOHC' started by virominoff, Jan 5, 2016.

  1. virominoff

    virominoff FEOA Member

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    My Ford died on the highway a week back,and I finally got around to replacing the fuel pump. The problem is that I'm not getting fuel on the fuel rail. Could the new pump be bad or is there something else to check?
  2. denisond3

    denisond3 Moderator Staff Member

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    There is a fuel pump relay, controlled by the PCM, and a fuel cutoff switch that is meant to 'open' in an accident, or even a bad pothole (which is when mine tripped open). If the fuel cutoff switch opens, it is supposed to light up an indicator on the bottom of the cluster, which comes on when the ignition is turned on.
    If so, the switch is located in the trunk, behind a small rectangular door on the passenger side of the plastic trunk liner, behind the strut tower on that side. You depress the red button and it should latch down if it had tripped. Some folks have had the cutoff switch open too easily, and have wired around it.

    The fuel pump relay is located next to the PCM, at the bottom of the console behind.below the ash tray. There is a plastic access panel on the passenger side footwell that you can pry off. I dont recall which of the two side by side relays is for the fuel pump though. The other relay is called the PCM relay, but really controls more than one function I think.

    The pump should run at 3 times: When the ignition is first turned on, it should run for about a second; and in a quiet location you should be able to hear the pump humnm. It should run when the starter is engaged and is cranking the engine; ... and last of all - it should run when the Crankshaft Position Sensor tells the PCM that the engine is running.
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  3. virominoff

    virominoff FEOA Member

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    The cut off switch is good and I'm pretty sure I heard the pump turn on when I turned the key, but I'll check again this weekend.

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  4. virominoff

    virominoff FEOA Member

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    Any idea where I can buy a new relay. I didn't see it on Rock Auto

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  5. denisond3

    denisond3 Moderator Staff Member

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    I would think any good auto parts place would have them, as they are basically a pretty standard "Ford" version of a single pole double throw 12 volt relay. I think of NAPA places as being among the best, though not the cheapest.
    I would think Rockauto might list them as a general-purpose relay for an Escort; but I havent really searched.
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  6. virominoff

    virominoff FEOA Member

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    OK thanks. I'll pick up the relay and see if I can get fuel pressure.

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  7. LariRudi

    LariRudi FEOA Donator

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  8. zzyzzx

    zzyzzx FEOA Member

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    Relays can easily be bench tested. I wouldn't indiscriminately replace a relay. Plus if you heard the fuel pump, the relay is probably working. You can always run 12V directly to the fuel pump and then test for pressure.
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  9. denisond3

    denisond3 Moderator Staff Member

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    When running a wire to feed 12 volts to the pump, I would do it in a well ventilated spot, with the doors open. I dont have much of a sense of smell anymore, and cant tell when there would be gasoline fumes around.

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