Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

95 kenworth t800 fuel transferring to passenger side

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Nestor, Dec 10, 2017.

Page 1 of 4
  1. Dec 10, 2017 #1
    Nestor

    Nestor Light Load Member

    160
    23
    Oct 21, 2015
    0
    Good morning fellas. I have a 95 kenworth t800 with 100 gallon tanks on each side.fuel is transefring from driver side to pasenger side.
    This morning I got up to pump fuel and my passenger side tank was full and my driver side had a 1/4. Last time I pumped was couple days ago and filled half way on both tanks. So I filled the driver side up and now it's overflowing the passenger side. Took off cap and spilled some . What can I start by doing ? Thank you
     
    Nestor, Dec 10, 2017
    Nestor, Dec 10, 2017
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Dec 10, 2017 #2
    NightWind

    NightWind Road Train Member

    2,619
    18,597
    Nov 11, 2006
    Sunny South, AL
    0
    Are the vents in the fuel caps clean?
     
    NightWind, Dec 10, 2017
    NightWind, Dec 10, 2017
    #2
  4. Dec 10, 2017 #3
    Nestor

    Nestor Light Load Member

    160
    23
    Oct 21, 2015
    0
    Does it have a vent in cap also ? These tanks have a vent in the middle with a black hose running down about half way
     
    Nestor, Dec 10, 2017
    Nestor, Dec 10, 2017
    #3
  5. Dec 10, 2017 #4
    Tb0n3

    Tb0n3 Road Train Member

    4,279
    8,195
    Oct 5, 2012
    Earth
    0
    That is strange. Is it possible the return is filling the tank, but it's not drawing from both? Or is there more than gravity feed between them?
     
    Tb0n3, Dec 10, 2017
    Tb0n3, Dec 10, 2017
    #4
  7. Dec 10, 2017 #5
    NightWind

    NightWind Road Train Member

    2,619
    18,597
    Nov 11, 2006
    Sunny South, AL
    0
    There's a fuel block, some call it a fuel manifold where all the line tie in there could be an issue there. I'd see which line was the return for the passenger side and clamp it off and see what happens. I had valves installed on my truck just I case anything like this ever happens or I just want to use one tank.
     
    NightWind, Dec 10, 2017
    NightWind, Dec 10, 2017
    #5
  8. Dec 10, 2017 #6
    Nestor

    Nestor Light Load Member

    160
    23
    Oct 21, 2015
    0
    Not sure I tried blowing in the vent on driver side and can't blow in it . I tried blowing in passenger side , it blew bubbles , checked it 5 min later I couldn't blow no more I'm guessing because it's full
     
    Nestor, Dec 10, 2017
    Nestor, Dec 10, 2017
    #6
  9. Dec 10, 2017 #7
    Nestor

    Nestor Light Load Member

    160
    23
    Oct 21, 2015
    0
    Does fuel get sucked from both tanks ? And is there a return for both tanks as wel ?
     
    Nestor, Dec 10, 2017
    Nestor, Dec 10, 2017
    #7
  10. Dec 10, 2017 #8
    jdchet

    jdchet Medium Load Member

    535
    763
    Sep 3, 2012
    NE Ohio
    0
    Had this same problem on my 95 T800 years ago. Get some pipe plugs and remove and plug/cap the return line on the tank that's overfull. Take plug/caps off when tanks equalize. Problem is most likely the return valve that is mounted over the transmission. Real pain in the rear to get at! I always had this valve replaced when ever the trans had to come out.
    Yes fuel is drawn from both tanks.

    JD
     
    jdchet, Dec 10, 2017
    jdchet, Dec 10, 2017
    #8
    NightWind Thanks this.
  11. Dec 10, 2017 #9
    NightWind

    NightWind Road Train Member

    2,619
    18,597
    Nov 11, 2006
    Sunny South, AL
    0
    It should be and there should be separate returns for both.
     
    NightWind, Dec 10, 2017
    NightWind, Dec 10, 2017
    #9
  12. Dec 10, 2017 #10
    NightWind

    NightWind Road Train Member

    2,619
    18,597
    Nov 11, 2006
    Sunny South, AL
    0
    sounds like the vent on the drivers side is plugged up.
     
    NightWind, Dec 10, 2017
    NightWind, Dec 10, 2017
    #10
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 4