Lost fuel avg

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Black389, Dec 28, 2017.

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  1. Mar 1, 2018 #41
    Ridgeline

    Ridgeline Road Train Member

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    OK but is that the filter you have?
     
    Ridgeline, Mar 1, 2018
    Ridgeline, Mar 1, 2018
    #41
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  3. Mar 1, 2018 #42
    easytopleez33

    easytopleez33 Light Load Member

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    I think your on to something here Ridgeline. I had similar issues with an older Kenworth I had, it had an N14 Cummins, I installed a FASS filter system. With water seperator on it and it ran like new ever since.
     
    easytopleez33, Mar 1, 2018
    easytopleez33, Mar 1, 2018
    #42
    Black389 Thanks this.
  4. Mar 1, 2018 #43
    Black389

    Black389 Light Load Member

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    This is my fuel filter looks like, i get that lil filter changed inside with each oil change.
    B68D5B37-21CE-4C43-A510-AC28551F8B46.jpeg
     
    Black389, Mar 1, 2018
    Black389, Mar 1, 2018
    #43
  5. Mar 1, 2018 #44
    Black389

    Black389 Light Load Member

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    Does this filter have that “pre filter” u talking bout?
     
    Black389, Mar 1, 2018
    Black389, Mar 1, 2018
    #44
  7. Mar 2, 2018 #45
    Roberts450

    Roberts450 Road Train Member

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    Do you have a fuel restriction gauge on the dash? If yes what is it reading?
     
    Roberts450, Mar 2, 2018
    Roberts450, Mar 2, 2018
    #45
  8. Mar 2, 2018 #46
    wore out

    wore out Numbered Classic

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    Put a restriction gauge on that compucheck fitting. 0 to 1 sucking air.
    2 to 6 normal. Anything around 10 and it's got a restriction
     
    wore out, Mar 2, 2018
    wore out, Mar 2, 2018
    #46
    Black389 Thanks this.
  9. Mar 2, 2018 #47
    Ridgeline

    Ridgeline Road Train Member

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    Yep that's it I am waiting for someone to send me the manual for that one. We had a couple trucks with that type made by rancor but because we stock Davco, I had them swapped out.

    Roberts and Wore out have it right, if it has a gauge then check it, if it doesn't, get checked.
     
    Ridgeline, Mar 2, 2018
    Ridgeline, Mar 2, 2018
    #47
    Black389 Thanks this.
  10. Mar 3, 2018 #48
    Black389

    Black389 Light Load Member

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    Last night with full tank it wasnt going to 2 even when i had the paddle all the way down. Crusing around 60 was 1.5 id say. But when tank start getting little low then i can get the gauge to 2, when on last quarter then i can sometimes get to 4.
     
    Black389, Mar 3, 2018
    Black389, Mar 3, 2018
    #48
    wore out Thanks this.
  11. Mar 3, 2018 #49
    wore out

    wore out Numbered Classic

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    There isn't a restriction, or sucking air. IMO
     
    wore out, Mar 3, 2018
    wore out, Mar 3, 2018
    #49
  12. Mar 3, 2018 #50
    Black389

    Black389 Light Load Member

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    Okay so its not that. Ima change map sensor and turbo speed sensor lot of people have told me they had this problem, and it was just those sensors.
     
    Black389, Mar 3, 2018
    Black389, Mar 3, 2018
    #50
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