Duramax Diesels Forum Truck of the Week
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Old 10-02-2017, 11:14 AM
frankenstien's Avatar
frankenstien frankenstien is offline
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Posts: 318

Question Fuel system ? bypassing lift pump

I have a Fass 150G adjustable lift pump on my 05 LLY, it also has a nicktane adapter with a cat spin on fuel filter. I have a sensor for my fuel pressure gauge in the filter head along with a bleeder valve. The fuel system is stock besides those things.

My lift pump is leaking out of the weep hole, its under warranty, but i have to send the pump back, so i was thinking of just grabbing a fitting and hooking the in and out lines together so i can remove the pump to send it off.

However i am not sure if i will have any priming problems after i hook it up, as i have no way to prime the system with no lift pump or hand primer. I would rather not down the truck if i don't have to.

so will it pull that air pocket through from disconnecting the line and be ok? or should i just down it?
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2005 ECSB LLY
5'' exhuast, EGR/Cat MIA
ATP EFI Live Fass 150 big cat filter
Built Trans w/SC1058
Bumpers built by me
Grade C HG's w/studs
Leveled 295/75/16 Toyo's
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Old 10-02-2017, 11:57 AM
clrussell's Avatar
clrussell clrussell is offline
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Stick an air hose in the fuel filler and prime that way if you have to.

You should be able to take a hose and bypass like you mentioned
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01 ext cab, Billet ihi, trans with g converter, sac 45s, tap shift, lots of black, everything built by myself with help from some of the best in the buisness.

Thanks to everyone on this forum who has helped me and those whom I bought parts from.

Special thanks to Evan, James, Russell, Mark and all the others I'm forgetting.
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  #3  
Old 10-02-2017, 02:11 PM
frankenstien's Avatar
frankenstien frankenstien is offline
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alright, thanks
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2005 ECSB LLY
5'' exhuast, EGR/Cat MIA
ATP EFI Live Fass 150 big cat filter
Built Trans w/SC1058
Bumpers built by me
Grade C HG's w/studs
Leveled 295/75/16 Toyo's
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