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Freelander not firing td4 2006

Discussion in 'Land Rover Freelander' started by Jmetland, Jan 16, 2019.

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  1. Jmetland

    Jmetland Member

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    2006 td4 not firing I can hear the pump in the back I’ve tried tapping it etc,
     
  2. Nodge68

    Nodge68 Well-Known Member

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    A bit more information is needed.
     
  3. Jmetland

    Jmetland Member

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    Changed fuel filter behind rear wheel , I can hear fuel pump buzzing away it just cranks over
     
  4. Nodge68

    Nodge68 Well-Known Member

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    Did it start before the filter was changed?
     
  5. Jmetland

    Jmetland Member

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    Yes started sometimes was a struggle, I’ve cracked open the fuel line that goes from the pump to the rail and theirs fuel going to the rail
     
  6. Nodge68

    Nodge68 Well-Known Member

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    What does struggle to start mean? Was it slow to fire on cranking?
     
  7. Jmetland

    Jmetland Member

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    Yes slow to fire on cranking
     
  8. Nodge68

    Nodge68 Well-Known Member

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    So you just hold the starter, but takes a long time to fire?
     
  9. Jmetland

    Jmetland Member

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    It’s just keeps keeps cranking, I’m reluctant to easy start or anything etc
     
  10. Nodge68

    Nodge68 Well-Known Member

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    Ok, so you have low fuel pressure at the rail, but I suspect you don't have high pressure at the rail. The first thing to do is replace the O rings on the pressure regulator. If the O rings split, or let fuel by, the rail pressure struggles to build enough for the injectors to function.
     
  11. Jmetland

    Jmetland Member

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    We’re do I I find the pressure regulator ?
     
  12. Nodge68

    Nodge68 Well-Known Member

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    The HP regulator is bolted to the end of the high pressure fuel pump. It's a very common reason for non starting.
     
  13. Jmetland

    Jmetland Member

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    Will try tomorrow thanks
     
  14. Nodge68

    Nodge68 Well-Known Member

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    You need a Torx key set for the 2 bolts and it's best to remove the inlet manifold to be able to access the HP pump.
     
  15. Jmetland

    Jmetland Member

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    Okay thankyou
     
  16. Jmetland

    Jmetland Member

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    So today removed inlet manifold and starter, removed the two torx bolts to find out the rubber o ring was fine ?
     
  17. Nodge68

    Nodge68 Well-Known Member

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    It might look fine, but it's best to change it anyway. Any leakage past the O ring stops the fuel pressure from building enough for the injectors to fire correctly.

    Also check the rail sensor plug for corrosion.

    Hopefully yours isn't one of the few that have had some really difficult to find faults.

    It's worth reading off any codes stored too.
     
  18. Alex1000

    Alex1000 Member

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    Try using easy start spray. Spray into air inlet. If it starts her and she then dies out after starting you know its a fuel problem. If runs but wont start again when stopped, its a sensor issue of some sort. IIhad a laguna that did that. Easy start and she started and ran until stopped. Took a while but it was a faulty crank case sensor. Wasn,t kicking in when starting, but worked when engine was running

    As you split the fuel line, could there be air in the line? Stopping her building up pressure?

    And a question to the forum, how do you bleed a td4?
    About to change fuel filter myself, so going to watch this thread.
     
  19. guineafowl21

    guineafowl21 Well-Known Member

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    It’s self-bleeding. I Just turn the key to II and let the pump run until it stops. Repeat. Start engine and fast idle for a bit.
     
  20. brownie55

    brownie55 Member

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    Am following this thread with interest, as I have the same starting problem.
    I changed the regulator o ring last week even though it looked ok, and hippo started fine for a few days on the trot, until the first frosty day. I gave it a squirt of easystart and it started and ran just fine. Next morning had frost again and I flattened the battery trying to start it. What’s next?
     
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