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TD5 Defender won't start

  • 22-01-2020 4:36pm
    #1
    O.A.P
    Registered Users, Registered Users 2 Posts: 1,380 ✭✭✭


    I have this defender since 2004 and have fixed a lot things on it over the years but I'm sure what the problem is this time ?
    I replaced the fuel pump about two years ago and the injector seals around the same time, so I'm hoping that they are not the problem this time .
    It was getting hard to start before Christmas but I replaced the contacts in the starter motor and all was good for a week or two. After Christmas it took a long time to start maybe 30 seconds spinning before it fired, this happened a few times and it let me down eventually
    It started a few times since when I sprayed paraffin into air intake but that wont work anymore (it tries to fire when paraffin reaches the cylinder's but wont)
    Oil wicking its way into the ECU is a common problem on the TD5 but mine is fine and its half full of diesel .
    So any suggestion on where to start looking for the fault?
    Thanks for any help.


Comments

  • #2
    swarlb
    Registered Users, Registered Users 2 Posts: 1,244 ✭✭✭swarlb


    Check the fuel pressure regulator on the right hand side (as you are sitting in the car) of the cylinder head, near the bulkhead. These can leak, stopping fuel actually getting to the engine.
    Injector seals could be gone again.... they are tricky to get right in the first instance. Fuel pumps are also a weak point.
    Is it actually getting fuel ?


  • #3
    O.A.P
    Registered Users, Registered Users 2 Posts: 1,380 ✭✭✭O.A.P


    swarlb wrote: »
    Check the fuel pressure regulator on the right hand side (as you are sitting in the car) of the cylinder head, near the bulkhead. These can leak, stopping fuel actually getting to the engine.
    Injector seals could be gone again.... they are tricky to get right in the first instance. Fuel pumps are also a weak point.
    Is it actually getting fuel ?

    I don't know I suspect it's not when trying to start but runs fine when started (at least it did).
    The fact that it tries to fire when the parrifen gets compressed makes me think it's a fuel issue but then wouldn't I have noticed it struggling for fuel when it was running
    I will have a look at the pressure regulator and see if its leaking.
    I'm not looking forward to opening the fuel system it' takes a good while to bleed it everytime I do, which makes it hard to know if I've fixed the problem and just still air locked or not.
    Thanks for the reply


  • #4
    swarlb
    Registered Users, Registered Users 2 Posts: 1,244 ✭✭✭swarlb


    It can be a pain in the neck to bleed these. The 4 plastic pipes running to the fuel pump and then on to filter and pressure regulator can crack, drawing air into the system.
    I don't know what year yours is, but some have 3 pipes on the regulator with an extra fuel cooler system, others have 2 pipes to the regulator. Just check all pipes for cracks or breaks.
    Dip the oil as well just to be sure there is no fuel missing with engine oil.


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