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Fuel Filters

Discussion in 'Peterbilt Forum' started by awright, Dec 20, 2016.

Page 1 of 2
  1. Dec 20, 2016 #1
    awright

    awright Light Load Member

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    Dec 20, 2016
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    I have a Cat C15 625hp in my 2006 peterbilt 379. I am running a Bully Dog system with single turbo conversion. I seem to always be changing my cat fuel/h2o filter (256-8753). Am i trying to get too much fuel through this filter for the high horsepower or what? I had this problem prior to installing the single turbo/bully dog kit. I just wanted to put all info on the table to see if anyone has any suggestions. I was told today at peterbilt that there is a high flow base made by caterpillar to replace the factory fleetguard filter base. I brought the new one home, and I looks identical to what I have, so mine must already be the high flow. Should I be looking into the fuel pump?
    Any ideas are welcome.
     
    awright, Dec 20, 2016
    awright, Dec 20, 2016
    #1
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  3. Dec 21, 2016 #2
    blairandgretchen

    blairandgretchen Road Train Member

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    Are you saying you're changing the filter often because it is plugged, and the engine runs fine after you change filters?
     
    blairandgretchen, Dec 21, 2016
    blairandgretchen, Dec 21, 2016
    #2
  4. Dec 21, 2016 #3
    awright

    awright Light Load Member

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    Seems to! I am wondering if I need to go to a bigger micron filter, but dont want to have other problems down the line either. I especially have problems with fuel at Loves in Dwight IL. I dont get far down the road and my fuel filter guage is in the red, and time for filters again. I have talked to Manager, and even talked to Headquarters in OK City. They claim I am the only one having problems.
     
    awright, Dec 21, 2016
    awright, Dec 21, 2016
    #3
    KB3MMX Thanks this.
  5. Dec 21, 2016 #4
    HalpinUout

    HalpinUout Road Train Member

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    Theirs threads on here with othere who have experienced issues with fuel from Loves as well.
     
    HalpinUout, Dec 21, 2016
    HalpinUout, Dec 21, 2016
    #4
  7. Dec 22, 2016 #5
    blairandgretchen

    blairandgretchen Road Train Member

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    I'm thinking - that there's a fuel purity problem, have you shone a flashlight in your tanks to check for algae? And/or cut your filter open to inspect?
     
    blairandgretchen, Dec 22, 2016
    blairandgretchen, Dec 22, 2016
    #5
    awright Thanks this.
  8. Dec 22, 2016 #6
    062

    062 Road Train Member

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    After the truck has been parked for a few hours drain some fuel into a clear container,preferably glass. Drain each tank into a separate container,let them set a while. Could be you have crud in the bottom of the tanks that gets stirred up when you fuel.
     
    062, Dec 22, 2016
    062, Dec 22, 2016
    #6
    awright Thanks this.
  9. Dec 30, 2016 #7
    KB3MMX

    KB3MMX Road Train Member

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    Your filters are working correctly , stopping contamination before it goes to the really expensive parts.
    Do NOT go to a larger micron filter .... Clean your fuel system and keep changing filters
     
    KB3MMX, Dec 30, 2016
    KB3MMX, Dec 30, 2016
    #7
    AModelCat Thanks this.
  10. Dec 31, 2016 #8
    little cat 500

    little cat 500 Road Train Member

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    bigger the micron the bigger the junk going thou the injectors
     
    little cat 500, Dec 31, 2016
    little cat 500, Dec 31, 2016
    #8
    KB3MMX and AModelCat Thank this.
  11. Dec 31, 2016 #9
    AModelCat

    AModelCat Road Train Member

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    Couldn't you install your 2nd filter base and plumb them together in parallel? Double the filtering capacity and increase the fuel flow through the filters. Hitachi did that with their newer large sized excavators.
     
    AModelCat, Dec 31, 2016
    AModelCat, Dec 31, 2016
    #9
  12. Dec 31, 2016 #10
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    They used to plumb Stanadyne square base glass enclosed filters in multiples, the other way is what Davco did with higher capacity like the 482 series I have on the DD15, which is in addition to the engine mounted filters, they plan on changing them at every other full pm (oil and filter change) roughly 100 thousand miles, and when used as a secondary filter, probably run larger micron filtering.
     
    25(2)+2, Dec 31, 2016
    25(2)+2, Dec 31, 2016
    #10
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