Announcement

Collapse
No announcement yet.

fuel tank fails to deliver.... any explanations?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • fuel tank fails to deliver.... any explanations?

    I have a 150 Diesel GXL, no engine mods, 18 months old, 28k on the odo.
    I recently had a problem with the long range tanks and I would like to know if somebody understands what Toyota service were trying to tell me, so I have a better chance to understand if it might happen again.
    A week ago, with 130km remaining range showing on the display, it just died.
    Symptoms were no fuel being pumped when it was cranked, or after it had started.
    We could prime the fuel system manually and sometimes start again, but it would run only for a few seconds.

    This was a 500km tow from the nearest Toyota service centre, so I wasn't happy.

    When I got it in for repair, they pulled the tank out and reported that a one-way valve between the tanks had come adrift.
    I don't understand several aspects of this...
    1. If the level sender and fuel pump are in the same chamber then why does it stop pumping fuel?
    2. If a one-way valve is missing, then what is to stop the fuel going where it is needed
    3. when initially sold to me, it was claimed the two tanks operated simply as a single large tank, with no need to switch over. So how would a one-way valve fit into this description?

    Does anyone have any understanding of how this works? or in my case, didn't work?

  • #2
    There are two tanks which, for the purposes of the driver, act as one. That relies on the pumps and piping working as designed. There are threads in here on how the tanks work so search and you will find many pages of discussion. In your case a pipe was dislodged and the tank with fuel couldn't be accessed to supply fuel to the engine. First time I have heard this happening. Were you were 4wd'ing at the time? I wonder what dislodged the pipe.
    My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic

    Comment


    • #3
      Gday cameron2

      Originally posted by cameron2 View Post
      Does anyone have any understanding of how this works? or in my case, didn't work?
      Firstly!.... I am very aware this thread below is for the 120 series but it gives an insight on the fuel system layout!

      Fuel Supply Problem -diesel

      Underbody fuel filter

      Also!

      This part number (23300-30410) is the part number for the underbody fuel filter on the 150 series D4D!

      Hope this helps

      Cheers

      Comment


      • #4
        Originally posted by mjrandom View Post
        There are threads in here on how the tanks work so search and you will find many pages of discussion.
        That was my first path, but my search techniques failed me. I'll have another go.
        Were you were 4wd'ing at the time? I wonder what dislodged the pipe.
        We were on Gibb River road returning from Mitchell Falls, so plenty of corrugations.

        Service were quite specific that it was a one-way valve that dislodged rather than a pipe.

        Comment


        • #5
          Originally posted by Skywalkerrun View Post
          Gday cameron2

          Firstly!.... I am very aware this thread below is for the 120 series but it gives an insight on the fuel system layout!
          It sounds familiar, but I don't know how different the 120 and 150 are.

          This part number (23300-30410) is the part number for the underbody fuel filter on the 150 series D4D
          Both the front and rear filters had already been replaced and verified clean anyway, before it got to the Toyota dealer. So we knew it wasn't a fuel cleanliness issue.

          Comment


          • #6
            This is copied from the Toyota Prado repair manual, On duel fuel tank models, a fuel pump and jet pump are provided in the main fuel tank to transfer the fuel from the sub fuel tank to the main fuel tank. This is accomplished by utilizing the fuel flow through the jet pump. The pressure difference is created by the fuel as it passes through the venturi, and it is used to suck the fuel out of the sub tank and send it to the main fuel tank.

            The fuel pump is powered, the jet pump uses fuel flow.

            The is no one way valve, unless they have called the jet pump or venturi that.

            Hope this helps
            4WDriver since 1975, current 4WD, 2009 GX diesel auto 150 series, fitted with ARB bullbar, snokel, dual batteries, rear draws, water tank, mud tyres, side steps, 50mm lift & roof bars. Tow a Olympic Champion XPack caravan, travelled a lot of Australia, past big trips in 150, August 2010 - Hay River Track NT, July 2011 - Kimberleys and WA, July 2013 - Canning Stock Route WA.

            Comment


            • #7
              If you pull out the jet pump in the tank electron , it looks just like a one way valve , but a jet pump is what it is , like you said it uses fule flow to draw the fuel across to the other tank
              2012 Graphite GXL T/D Auto, with all the normal crap you fit

              Comment


              • #8
                Just a followup, now that I have been to the next Toyota dealer (just a regular service this time)

                The mechanic there explained that it was nothing to do with the secondary fuel system, but a one-way valve somewhere near the sender in the main fuel tank. It got dislodged and somehow simply blocked any fuel flow.

                Comment


                • #9
                  Hi Cameron, we're stuck on the side of the Mitchell Falls Rd in the Kimberley with a problem that sounds similar to yours.

                  Do you know if you had fuel in the sub-tank but the main tank was empty (ie the problem was transferring the fuel) OR was it not sucking the fuel from the main tank?

                  Comment

                  canli bahis siteleri bahis siteleri ecebet.net
                  mencisport.com
                  antalya escort
                  tsyd.org deneme bonusu veren siteler
                  deneme bonusu veren siteler
                  gaziantep escort
                  gaziantep escort
                  asyabahis maltcasino olabahis olabahis
                  erotik film izle Rus escort gaziantep rus escort
                  atasehir escort tuzla escort
                  sikis sex hatti
                  en iyi casino siteleri
                  deneme bonusu veren siteler
                  casibom
                  deneme bonusu veren siteler
                  deneme bonusu veren siteler
                  betticket istanbulbahis
                  Working...
                  X