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Thread: Engine Cutting Out

  1. 9th January 2009, 12:18 PM #1
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    Engine Cutting Out

    Hello all, just have a frustrating intermittent fault with a '91 3.5L V8i, dual fuel. Symptoms are like this:

    Drive for 30 minutes with no problem.
    Then occasional stumble as though key has been turned off momentarily.
    Occasional stumbles get longer until engine stays off. It is not a misfire, just a hard cut to engine power. Other electricals keep operating such as head lights, radio, even tacho continues to show correct engine RPM while coasting. After a few minutes the engine can be restarted and runs perfectly. All happens the same whether running on lpg or petrol. During the stumble I notice the LEDs on the lpg gauge/selector go out, and then only when they come back on can the engine be restarted. A click is heard which sounds like the gas solenoid.
    My thoughts:
    Prob not ignition coil/leads as this would also kill tacho, and result in a lot of backfiring?
    Prob not ignition switch as lights, radio, tacho would also go out?
    Could it be the inertia cut-off switch? Engine has died once while stationary which makes me think probably not.

    Any ideas? I'm really not sure if its going to get me home from work or not!

    Cheers,
    Scott.
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  2. 9th January 2009, 12:44 PM #2
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    If it's the same on both fuels, then I would suspect an ignition problem somewhere.

    The module on the distributor can become affected by heat. Do you have spark at the time when the engine won't start?

    BTW, the tacho runs off the alternator, not the coil so that might explain why that seems OK.
    Scott
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  3. 9th January 2009, 01:17 PM #3
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    Mine did that, ended up apparently being a factory immobiliser issue
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  4. 9th January 2009, 01:52 PM #4
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    coil packs, amplifier or the imobiliser cooknig.
    Dave

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  5. 9th January 2009, 01:58 PM #5
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    I had a very similar problem on my last Series Landy.Turned out to be a faulty solenoid on the LPG system.Once replaced it never happened again,it too effected BOTH petrol and LPG use.
    Goodluck
    Andrew
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  6. 9th January 2009, 02:03 PM #6
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    Quote Originally Posted by Boxer View Post
    Mine did that, ended up apparently being a factory immobiliser issue
    He's safe with a '91 then .


    Quote Originally Posted by Blknight.aus View Post
    coil packs, amplifier or the imobiliser cooknig.
    Coil pack?
    On a D1?
    Scott
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  7. 9th January 2009, 03:37 PM #7
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    Thre are no coil packs on a 91 Disco.My guess would be the module on the distributor like Scouse said.Had this happen on a Rover SD1 V8 and it did exactly the same thing as yours.
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  8. 9th January 2009, 03:41 PM #8
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    Just read the rest of your post.After driving 30 min it cuts off.I would definately say your module on the distributor.After it gets hot it doesnt want to work and then after you let it rest and cool down it starts straight away.Although i have been wrong.
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  9. 9th January 2009, 05:27 PM #9
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    Quote Originally Posted by Scouse View Post
    He's safe with a '91 then .


    Coil pack?
    On a D1?
    ummm would you believe

    "it was a typo it was ment to be amplifyer/coil pack..."?

    no, thought not...

    ahhh

    "it was a test, I wanted to see who was paying attention"?.

    not that either huh.

    I know....

    "I was covering my bases incase hed done some really cool mods."

    oh alright... you got me.

    I was in a hurry and didnt read all of the post so just grabbed the first 3 most likely items that can be made to fault with age and heat soaking.....



    actualy if its anything like the first D1 I was involved with it could just be the earth on the coil itself... that took me a month to find and fix properly.
    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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  10. 9th January 2009, 07:46 PM #10
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    Quote Originally Posted by Blknight.aus View Post
    actualy if its anything like the first D1 I was involved with it could just be the earth on the coil itself... that took me a month to find and fix properly.
    Hey Dave, you better stop now I think.

    Since when have coils been earthed?


    It's OK, I know what you mean .
    Scott
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