Defender Td5 not 'auto-bleeding'





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  1. #1
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    Exclamation Defender Td5 not 'auto-bleeding'

    Howsit guys,

    My Defender doesn't do the fuel pump/system bleed when you depress the pedal 5 times (I think that's how you're meant to do it)

    Any suggestions?

  2. #2
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    Can you hear the pump when you switch the ignition on, it should run for about 3-5 seconds.

  3. #3
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    the Td5 pump should run around 20 - 25 seconds
    depress pedal 5 times and the engine light should come on to indicate that it is in autoprime
    may be an ECU issue, a dirty plus of something silly
    you can prime without this function by switching on till the pump stops, switch off and on etc but worth investigating

    Land Rovers never die, they simply become organ donors!

  4. #4
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    The pump runs for 3 minutes when the ignition is turned on. Thereafter the pedal pump method does not work.

    The ecu does look dirty, how do I go about cleaning it?

    Who can help me look at this (the pump bleeding)? I know its a small fault but its a fault none the less.

  5. #5
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    Some of the earlier ECU's did not have this function.

    I think you have to switch it off and on a few times to bleed it.
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  6. #6
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    Quote Originally Posted by miks. View Post
    The pump runs for 3 minutes when the ignition is turned on. Thereafter the pedal pump method does not work.

    The ecu does look dirty, how do I go about cleaning it?

    Who can help me look at this (the pump bleeding)? I know its a small fault but its a fault none the less.
    remove the ECU, unscrew the cover bolts (you need special Allen keys - those with hole in the middle of the star) and remove the cover
    get electrical cleaner and properly drench the inside and the outside, place face down for the muck to run out and leave in sun to dry
    reassemble the cover and apply a thing cote of silicone to where the cover fits on
    also silicone the vent holes to prevent water and dust ingress

    Land Rovers never die, they simply become organ donors!

  7. #7
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    Quote Originally Posted by Landyluvver View Post
    reassemble the cover and apply a thing cote of silicone to where the cover fits on
    also silicone the vent holes to prevent water and dust ingress
    So much for vent holes....

    I understood the problem was predominantly oil migrating into the ecu via the wiring loom.

  8. #8
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    Default Re: Defender Td5 not 'auto-bleeding'

    Quote Originally Posted by serieslr View Post
    Some of the earlier ECU's did not have this function.

    I think you have to switch it off and on a few times to bleed it.
    I have a 1999 Defender TD5 which doesn't seem to do autobleed. Do you have any info on which ECUs can do it and which can't?
    Land Rover
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