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-   -   6.4 l low pressure lift pump (https://www.dieselbombers.com/ford-powerstroke-08-10-6-4l/26896-6-4-l-low-pressure-lift-pump.html)

Dennis Lawson 02-13-2017 07:50 PM

Did you change the frame rail filter also? if so be sure the cap is tight and not losing suction there. if you did that, probably the lift pump, located on the frame rail. after i changed my filters, i found that my pump was bad. ran, but no pressure.
after i installed the new pump, it filled the top bowl up in about 2 seconds.

Seabee24 02-13-2017 08:05 PM


Originally Posted by Dennis Lawson (Post 1127335)
Did you change the frame rail filter also? if so be sure the cap is tight and not losing suction there. if you did that, probably the lift pump, located on the frame rail. after i changed my filters, i found that my pump was bad. ran, but no pressure.
after i installed the new pump, it filled the top bowl up in about 2 seconds.

yes we did the bottom filter. I would have to double check the cap. But it's not leaking in any way

Dennis Lawson 02-13-2017 09:12 PM

Sounds like the lift pump is bad

Dennis Lawson 02-13-2017 09:18 PM

Fuel Pump - Advance Auto Parts

Seabee24 02-13-2017 09:19 PM

Would you say that even though it worked prior to cleaning and after installing it does come on and off when I turn the key?

Dennis Lawson 02-14-2017 05:16 AM

Yes. Mine was working fine as long as it was primed.
When I changed the filters and took away all the fuel, it was not strong enough to prime itself.

Dennis Lawson 02-14-2017 07:17 AM


Originally Posted by Dennis Lawson (Post 1127356)
Yes. Mine was working fine as long as it was primed.
When I changed the filters and took away all the fuel, it was not strong enough to prime itself.

Let me know if this fixes your problem as it did mine.


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