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Thread: td5 Def Fuel pump noise & loss of power??

  1. 8th May 2009, 05:39 PM #1
    greenextreme
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    td5 Def Fuel pump noise & loss of power??

    Hi Guys,

    1999 td5 110 fuel pump stays on [screeching] when stationary and driving and engine power seems very sluggish from take-off up to 70kmh. Engine sounds like an injector has failed [possible?]. Dash lights show nothing unusual. Checked fuses and relays - all seem OK. Drained secondary fuel filter, no water present. Checked electrical connections on ECU, air filter, under bonnet etc all OK.

    Engine sounds like 3-4 cylinders are working when at idle. Is this 'limp home mode' and if so why?

    I just had the oil cooler replaced, engine flushed and a major service, but it drove fine for three days and now this. Any thoughts on the cause or the solution?

    cheers,
    greenextreme
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  2. 8th May 2009, 06:07 PM #2
    Blknight.aus's Avatar
    Blknight.aus
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    do the oil in the harness checks else its your fuel pump letting go, invest in a spare one now, without it you cant drive.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

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    Archaeoptersix 1990 6x6 dual cab(This things staying)


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  3. 8th May 2009, 06:21 PM #3
    greenextreme
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    Hi Dave,

    Checked the harness. Clean and good [no oil as per usual]. Methinks fuel pump might be the culprit. Is it an easy fix?

    cheers, greenextreme
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  4. 8th May 2009, 06:36 PM #4
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    Blknight.aus
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    no, its a pita in a deefer...

    search around for cutting the hole in the back floor so you can get to the pump without dropping the tank (which can also require the removal of the tow pack if you have one of the wrong ones (ok its not wrong its just different and gets in the way of dropping the tank))

    Update your profile to include your location and you might find someone local who might help you out...


    also

    welcome to AULRO, The australian thing that makes up for the deficiencies in the landrover dealer network and a hell of a lot more as well.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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  5. 8th May 2009, 07:52 PM #5
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    spudboy
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    Take a look at this post: Defender Td5 - Fuel Pump Access Hole

    There is a PDF diagram of where to cut the hole

    Cheers
    David
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  6. 8th May 2009, 08:06 PM #6
    Blknight.aus's Avatar
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    cheers, thats the one I was looking for.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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  7. 8th May 2009, 09:02 PM #7
    greenextreme
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    Thanks guys. That should make it easier. cheers, greenextreme
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  8. 8th May 2009, 09:23 PM #8
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    Blknight.aus
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    I know a bloke over your way thats just cut the back of his deefer....

    search up greyknight.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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  9. 12th May 2009, 03:05 PM #9
    greenextreme
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    Hi Guys,
    Turns out No.5 injector was misfiring, MAF was faulty and fuel pump regulator was faulty. All repaired / replaced and it's now working a treat. Apparently the fuel pump is OK [according to ECU log]. Here's hoping it all stays working as we head off soon for a three week pilbara-coast adventure.
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  10. 15th May 2009, 05:32 PM #10
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    Yorkshire_Jon
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    When fuel pumps fail they tend to loose the ability to maintain the fuel rail pressure.

    You can plug a pressure gauge in (back of engine, in front of bulkhead, steering wheel side).

    Go for a drive it should maintain 4 bar at tickover and right through the rev range.

    Worth checking before you go to the bother of swapping it out cos its a real pita!
    Regards,
    Jon
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