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Thread: D2 Td5 air getting in the fuel system

  1. 20th February 2022, 07:11 PM #1
    twr7cx
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    Question D2 Td5 air getting in the fuel system

    What would make a D2 get air in the fuel system?
    MY03 D2a Td5 wouldn’t start this morning (just cranks over without firing) after running fine yesterday. Nil fault codes on Nanocom Evolution. 1/4 tank of diesel showing on the fuel gauge. Ran through the bleed process (five accelerator pumps) twice and was then able to get it running. Starts and drives fine after this.
    Fuel filter and leaking FPR replaced within last 2,000km. No signs of fuel leaks.
    Four hours later and it wouldn't start again.
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  2. 20th February 2022, 07:55 PM #2
    shack
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    A few reasons,

    The most common 2 would be the injector seals and a faulty/leaking in tank pump, I think I have the latter at the moment myself.
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  3. 20th February 2022, 09:08 PM #3
    twr7cx
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    How does the intank pump fault work? Would that perhaps be an issue more so when the fuel level is low than when the tank is full?
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  4. 20th February 2022, 09:20 PM #4
    shack
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    I don't know, but I have a pump I've swapped between cars and the fault followed, it could be bogus of course...
    Won't know until I fit a new one.

    But yes, worse when tank level low

    If it were me, I'd be checking/replacing the injector washers-o rings..

    .
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  5. 20th February 2022, 09:29 PM #5
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    Bohica
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    You can replace just the pump part. It is a bit fiddly but half the price of the complete unit, and yes, this is the VDO pump
    Fuel Pump Kit TD5 VDO
    D2a Td5 Manual, Chawton White. aka "Daisy"
    Build date 11th Oct 2003
    Freelander 2 2011, manual, the daughter calls it Perri
    Before I had a Land Rover I did not have any torque wrenches. Now I have three.
    LROCV #1410
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  6. 20th February 2022, 09:32 PM #6
    discorevy
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    Quote Originally Posted by shack View Post
    I don't know, but I have a pump I've swapped between cars and the fault followed, it could be bogus of course...
    Won't know until I fit a new one.

    But yes, worse when tank level low

    If it were me, I'd be checking/replacing the injector washers-o rings..

    .
    I've found a small split in the green convoluted pump line caused this on one.
    X2 on the injector washers.
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  7. 21st February 2022, 06:45 AM #7
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    laney
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    When replacing the fuel filter did the old filter o ring seal come off with the old filter if there are 2 o ring seals on the filter this will allow air in I had this problem which took some back tracking. I removed the old o ring and all was good again just a thought as I noticed you recently changed your fuel filter.
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  8. 21st February 2022, 06:51 AM #8
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    onebob
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    Quote Originally Posted by laney View Post
    When replacing the fuel filter did the old filter o ring seal come off with the old filter if there are 2 o ring seals on the filter this will allow air in I had this problem which took some back tracking. I removed the old o ring and all was good again just a thought as I noticed you recently changed your fuel filter.
    X2 …. only need one O ring, ask me how I know D2 Td5 air getting in the fuel system
    LROCV member #131
    1999 build D2 TD5 Auto, Mantec snorkel, 2" LRA spring lift, ARB on board air, Ashcroft ATB, CMM air ram CDL shifter, swag & gold pans ....
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  9. 21st February 2022, 10:19 AM #9
    SurfyRob
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    I had a hose get loose on the fuel filter housing for no apparent reason.
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  10. 22nd February 2022, 09:56 AM #10
    PhilipA
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    Have you ever replaced injector seals?
    What ks?
    If answers are no and + 160kks then this is likely.

    regards PhilipA
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