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Thread: Lift pump

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    Basic Member jbloodus's Avatar

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    Lift pump

    Just replaced the lift pump in my 2004. And am only getting 10 psi on with the key turned on. Ive tried it with and without the fuel filter in and still getting only 10 psi. Wtf? Can any one help. If it's a relay I don't see anything in the box that says fuel relay.


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    Re: Lift pump

    Stock pressure is 8-10 at idle and 5 at WOT

    Sent from my SAMSUNG-SM-N920A using Tapatalk


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    Old... But Still Here! AnOldBiker's Avatar

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    Re: Lift pump

    Mine hangs around the 10's, and when your rolling about 70 mph, you'll see the pressure higher.
    Mine was in the 15 to low 20's range the last time I looked. And no lack for fuel.

    Is this an issue with your truck, lack of fuel ?
    If this bothers you, consider converting to a Fass or AirDog.



    Jim


    2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17

    "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan

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    Old & Grumpy! Polaraco's Avatar

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    Re: Lift pump

    Quote Originally Posted by jbloodus View Post
    Just replaced the lift pump in my 2004. And am only getting 10 psi on with the key turned on. Ive tried it with and without the fuel filter in and still getting only 10 psi. Wtf? Can any one help. If it's a relay I don't see anything in the box that says fuel relay.
    That's fine! If it's a stock pump, it's all it will be. Is it an internal pump or the one on the fuel filter?


    2003- 3500 RWD Automatic.
    S & B intake, BD Intercooler, Pusher Air Horn, MM3 Double R Tuning, Turbo Timer, electric Flex-a-lite fans, FASS 95,
    50 HP tips, upgrade to 351 turbo, 3.42 gears, Twin air compressors, air bags, Remote dual oil filters, Hellwig sway bar, Front Winch. Home made Fuel Heater, BD Exhaust brake with Torque Lock. Tons of TLC

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