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Thread: Low rail pressure?

  1. Top Of Page | #1
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    Low rail pressure?

    Hey guys, I've got an 06 5.9 stock fuel system. I see about 7 k at idle, but I don't get over 19.6 k when under throttle. Looking for some guidance. I'm getting the numbers from my edge cts (I'm running the juice with attitude programmer).


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  3. Top Of Page | #2
    TX NIGHT TRAIN's Avatar

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    Re: Low rail pressure?

    Let's tag @Polaraco

    2014 3500 (DRW) 68RFE 3:73s . mirror light mod. 20% tint front 5% tint on rear. cattleman front bumper,running boards and headache rack. puddle light mod with blue leds. RGB lights in footwells and grill. Mostly debadged. 52" light bar and a 20" on the bumper. Smoked tail,cab and side marker lights. Black bezel headlights. Led lights where possible. 37 trail Graps. 2.5 inch leveling kit. Steering box brace. Dual steering stabilizers. MM3 and "WARPED" by Double R Diesel!

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  5. Top Of Page | #3
    Sisupower's Avatar

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    Re: Low rail pressure?

    Quote Originally Posted by TKM23 View Post
    Hey guys, I've got an 06 5.9 stock fuel system. I see about 7 k at idle, but I don't get over 19.6 k when under throttle. Looking for some guidance. I'm getting the numbers from my edge cts (I'm running the juice with attitude programmer).


    Sent from my iPhone using Tapatalk
    Are you having any issues? Any codes?


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  6. Top Of Page | #4
    Sisupower's Avatar

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    Re: Low rail pressure?

    Your idle is pretty close to normal. Around high way speed you could see around 14-16ish. WOT you should see more than 19.6 tho. You could have a bad FCA. Last time you changed fuel filter?


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  8. Top Of Page | #5
    Sisupower's Avatar

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    Re: Low rail pressure?

    I retract my last comment. Your close to normal across the board as for pressure. When you say on throttle?? Like WOT pushing through floor? Or just accelerating to get on highway?


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  9. Top Of Page | #6
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    Re: Low rail pressure?

    Fuel filter is a Baldwin within the last 1000 miles. When I said under throttle I mean accelerating hard. I'll have to check on wot to see what I get. No codes or other issues. Just want to make sure it's all doing what it should. About 102000 on the odometer. I've had the truck four years and I don't think I've seen 20k. I don't hammer on it, but I do pull a 10k camper in the summer.


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  10. Top Of Page | #7
    Sisupower's Avatar

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    Re: Low rail pressure?

    Go drive it and get reading at Idle, highway speed and WOT hammer it.


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    --Work gives you meaning and purpose, Life is empty without it--

  11. Top Of Page | #8
    Sisupower's Avatar

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    Re: Low rail pressure?

    If there is a issue. You will need to get a gauge hooked to CP3 and get accurate readings.


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    --Work gives you meaning and purpose, Life is empty without it--

  12. Top Of Page | #9
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    Re: Low rail pressure?

    Thanks for the replies! I'll post my numbers in the next day or so and see what you guys think.


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  14. Top Of Page | #10
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    Re: Low rail pressure?

    Ok had a chance to take a short ride. Idle pressure 6.5-7, messing around and pegging it I saw 23.5 or so. I don't usually hammer it like that. I'm happy to see that number, but not sure how long it should take to get there. I didn't get to test in highway numbers yet. Thanks for the info.


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