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Thread: 300tdi taking longer to start

  1. #1
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    300tdi taking longer to start

    a few weeks or so ago my 300tdi went from starting instantly i.e. as soon as you hit the starter it was away to now taking a few seconds to fire up. once running everything appears good.

  2. #2
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    air leak between fuel tank and lift pump OR blocked fuel line.
    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.
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  3. #3
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    Quote Originally Posted by Blknight.aus View Post
    air leak between fuel tank and lift pump OR blocked fuel line.
    soo with engine off for a while should i see a wet patch or drip?

  4. #4
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    no, you proably have a AIR leak not a fuel leak

  5. #5
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    Quote Originally Posted by ade View Post
    no, you proably have a AIR leak not a fuel leak
    umm if air is replacing diesel than where is the diesel going, some/mose back to the fuel tank but assumed some would escape the line

    no new drips on driveway

    the engine is runs fine, not using any extra diesel, power is the same so i sorta discounted the fuel system sucking air

    i more thought the problem maybe after the injector pump which is all new for me

  6. #6
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    Quote Originally Posted by weeds View Post
    umm if air is replacing diesel than where is the diesel going, some/mose back to the fuel tank but assumed some would escape the line

    no new drips on driveway

    the engine is runs fine, not using any extra diesel, power is the same so i sorta discounted the fuel system sucking air

    i more thought the problem maybe after the injector pump which is all new for me
    I had an air leak on my 110 (isuzu). Normally no drips. Filled the tank 100% full and parked nose down on a steep hill overnight, there was a about a 4" patch of fuel under the front diff in the morning.

  7. #7
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    So the leak could be "near" the injector pump and when parked fuel drains back/down into the tank, leaving an air gap in the line? When you start up it take a touch longer to start because the fuel has to pump up to replace the air?

    Sounds logical to me.

    James.

  8. #8
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    Battery it is important to have a realy good cranking battery as they get old the cranking amps drop

  9. #9
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    Quote Originally Posted by rangieman View Post
    Battery it is important to have a realy good cranking battery as they get old the cranking amps drop
    battery/batteries are good, all three of them

  10. #10
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    an air leak on the suction side of the pump is unlikely to show up as a fuel leak.

    if the tank pickup is a little blocked and the rubber seal on the bottom of the fuel water seperator is a bit dicey when the pump tries to draw fuel it gets some fuel and a little air when you shut the engine down any air thats made it into the pump needs to be purged or compressed enough to fire the injector.

    I got clued in on the SWMBO's ride when I couldnt get a clean flow of fuel from the fuel filter bleed point.
    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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