Symptoms of fuel bad fuel pump - Ford Powerstroke Diesel Forum
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post #1 of 24 Old 09-16-2019, 03:50 PM Thread Starter
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Symptoms of fuel bad fuel pump

For those of you that have had the fu el pump take a dump what were the symptoms? Did you get any warning? Were there any codes or dash lights?
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post #2 of 24 Old 09-16-2019, 03:59 PM
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I've read that EGTs will start skyrocketing when the pump is going bye-bye because the motor is running lean. Don't know though.

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post #3 of 24 Old 09-16-2019, 04:01 PM
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Yes, there was a code but I can't remember the exact number and eventually it will go into reduce power mode due to the shavings clogging the filter. You should see metal flakes in the fuel filter bowl

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post #4 of 24 Old 09-16-2019, 04:07 PM Thread Starter
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My situation is this: The truck sat for about 2 months. When I came home it fired right up and shut off liike 2 seconds later. Batteries went dead trying to restart it. Charged batteries. truck would turn over but not start. Batteries died after a few attempts. Took batteries to station to get a better charge. Truck turns over and sounds strong but still will not crank. No codes. No messages. I am hoping the batteries are just too weak to start but am scared it may be a fuel pump issue?
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post #5 of 24 Old 09-16-2019, 04:09 PM
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Originally Posted by Bluwaterbrew84 View Post
My situation is this: The truck sat for about 2 months. When I came home it fired right up and shut off liike 2 seconds later. Batteries went dead trying to restart it. Charged batteries. truck would turn over but not start. Batteries died after a few attempts. Took batteries to station to get a better charge. Truck turns over and sounds strong but still will not crank. No codes. No messages. I am hoping the batteries are just too weak to start but am scared it may be a fuel pump issue?
Sat for 2 months? You probably have gummed up fuel and not charge. Change the fuel filters and fill the tank

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post #6 of 24 Old 09-16-2019, 05:25 PM Thread Starter
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Where exactly is the fuel pump located on these trucks? I don't hear it coming on when i put the key in the on position.
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post #7 of 24 Old 09-16-2019, 06:31 PM Thread Starter
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Mu uncle came over and load tested the batteries for me, they seem fine. He could also hear the fuel pump turn on when i put the key in th eon position so hopefully that isnt the issue.
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post #8 of 24 Old 09-17-2019, 01:39 AM
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Fuel pump is on the frame. The lower half of the DFCM is the fuel filter and the upper half is the fuel pump.


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post #9 of 24 Old 09-17-2019, 02:33 AM
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Mu uncle came over and load tested the batteries for me, they seem fine. He could also hear the fuel pump turn on when i put the key in th eon position so hopefully that isnt the issue.
That's your low pressure pump that you hear but the high pressure pump is the one that is notorious for going out

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post #10 of 24 Old 09-17-2019, 09:16 AM Thread Starter
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That's your low pressure pump that you hear but the high pressure pump is the one that is notorious for going out

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Is the high pressure pump at the DFCM? If so that is the one he heard. Where is the low pressure pump located?
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