im new to this site an I have been looking all over an cant find anything on my problem I just replaced my hx34 with an hx40 an now I have fuel problem it keep losing prim I checked lift pump,injectors,filter,bleed scew,i deleted grid heater an will the hx40 drink more
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96 ram 3500 cummins 2x4 with manual nv4500 hx40 turbo 4inch all the way with 6tip #10fuel plate #60 over valve spring

 

the hx40 is the turbo so that has noting to do with fuel use.
i'm wondering if there is a blockage in one of the fuel lines.

 

If losing prime in a '96, your fuel lines are probably old, oxidized and cracky. Allows air bubbles

 

yeah or a cracked Pick up tube in tank ..

 

ok thanks im going to air the tank an check

 

calling off the search I dropped the tank an opened her up an seen that the whole vac.assem. is just in pieces I had to pick al broken parts out of the tank an I ve also shot bout 10 psi into the still fuel lines an all were fine held an sprayed them down all was good to the lift pump so thanks for all help ..off to find this part now

 

think im going with a sump but what do I need to do about the return line an the top of the tank

 

DON NOT USE A SUMP !!!!!!! .... here in Washington if they climb under your truck .. You will be towed .. Its Illegal and not necessarry for street trucks .. they sell products that will flow just fine up to 800 Hp ...

contact Larry B's ... Larryb - Dodge Fuel System parts - Dodge Diesel

just for starters .. if you need more parts feel free to call them .. they are Exeptionally helpful ..