Fuel pump replacement - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 06-17-2012, 06:17 PM Thread Starter
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Fuel pump replacement

I'm pretty sure my fuel pump took a dump on me today. My tank is completely full.
Would it be easier to pull the bed off instead of dropping a full tank?
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post #2 of 9 Old 06-17-2012, 06:27 PM
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Ur fuel pump is on the driver side frame rail, im going to replace mine tommorow bc its acting wierd, one day its 60-64psi and goes as low was 59Psi 2 WOT.....next day its hovering around 55psi and drops off bad under acceleration. its pretty easy to change look under the driver side on the truck
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post #3 of 9 Old 06-17-2012, 06:37 PM
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Wy do you think your fuel pump (HFCM) went bad?

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post #4 of 9 Old 06-17-2012, 06:42 PM
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Wy do you think your fuel pump (HFCM) went bad?
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post #5 of 9 Old 06-17-2012, 07:45 PM
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Have you checked the fuses and relay, the anti tipover switch do you get power at the fuel pump plug?


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post #6 of 9 Old 06-18-2012, 03:41 AM Thread Starter
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Yesterday it started acting like the fuel filters were choking up. I had a set and made it to a friends house to change them. I could not get any fuel to pump into the filter bowl on top. I checked the fuse and it was good. After checking on here, I see now that its the unit under the driver's side. Thats better than what I thought as far as dropping the tank
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post #7 of 9 Old 06-18-2012, 04:59 AM
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Pull the lines off the pump. See if it will pump diesel out of a container and then back into something else just so you can see it.
If it does, I'd check inside the tank and see what happened.
If not, HFCM.


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post #8 of 9 Old 06-18-2012, 01:44 PM
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agreed! the pump is also pretty loud put your ear to the ground koeo you should hear it coming on.
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post #9 of 9 Old 06-21-2012, 08:41 AM Thread Starter
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Codes said low fuel pressure.
Checked the voltage at the pump and that was good.
Replaced the pump and we're "on the road again"
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