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  1. #1
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    Unhappy Discovery 1 misfiring

    Where to begin?
    I have a dead standard 1996 LD Discovery 1.
    About 6 months ago when I bought the beast it ran like a charm, started first time every time.About a month ago I started her and it sounded as if the timing was out or someting to that effect, it ran rough and started misfiring?? I turned it off and started her again and it purred like a kitten. So I thaught OK time for some love and attention and i changed the plugs and fuel filter.

    Ran perfectly for a day or two, then my wife called and said it did it again. I went to the rescue and after a few attempts it started. On Friday we had to go to the hospital and it started with no problem and about 2 km from my place it started misfiring again and no power and died and I havent been able to get her started, I checked for spark it is there but seems a bit weak.

    Please could I have the assistance of a Land Rover Wizard I am running out of the few ideas I had.

  2. #2
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    It could be the coil, rotor or plug wires
    Sakkie van Staden
    Silver de Lange.2003 WJ Jeep..NOW powered by a 4L VVTI V8 Defy motor Forum Rebuild thread

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  3. #3
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    Or it could be the spider.....a very common problem on the Disco 1 from 1996 onwards.
    Read this. http://forums.lr4x4.com/index.php?showtopic=86
    Sakkie van Staden
    Silver de Lange.2003 WJ Jeep..NOW powered by a 4L VVTI V8 Defy motor Forum Rebuild thread

    2004 Jeep Grand Cherokee 2.7 CRD Diesel power....4 inch Home build Long arm lift
    Past
    Jeep 3.1 Wj..AKA Turbo Esel (RIP)
    Man made it....Man Fix it.....
    I'm going to use all my tools, my God-given ability, and make the best life I can with it.
    LeBron James

  4. #4
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    Run a wire from your coil live to your battery live. If the problem goes away its the spider; if not, it's not the spider. I know, I had to have my spider sorted years ago. You will have to remove the wire to be able to switch off the car.

    If its not the spider, start the car with bonnet open in a pitch black garage. Look for blue sparks. If you see these replace your ignition cables and distributor cap and rotor with originals from the agent (in my experience the aftermarket stuff doesn't work properly). When replacing the wires, be careful to route exactly as per the manual. There's an odd thing with the D1 V8i with two wires that have to cross in a specific way and place to avoid misfiring.

    If its none of the above, replace the ignition module under/behind the coil (old Ford Escort module is identical) and be sure to use the dielectric grease when doing so.

    If that doesn't solve it, try changing the coil.

    If still doesn't solve it, burn it! :-)

  5. #5
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    Thanks Clem
    Ill try the wire trick later today.If not, there is a very good landy parts place in Pinetown Ill go see them tomorrow.
    This spider, if thats the problem how do I sort it out?
    Last edited by Geoff w; 2015/01/26 at 07:50 PM.

  6. #6
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    Thanks Sakkie, I hope its not the Spider but if it is at least now i know what to do.

  7. #7
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    Thumbs up

    Quote Originally Posted by Clem View Post
    Run a wire from your coil live to your battery live. If the problem goes away its the spider; if not, it's not the spider. I know, I had to have my spider sorted years ago. You will have to remove the wire to be able to switch off the car.

    If its not the spider, start the car with bonnet open in a pitch black garage. Look for blue sparks. If you see these replace your ignition cables and distributor cap and rotor with originals from the agent (in my experience the aftermarket stuff doesn't work properly). When replacing the wires, be careful to route exactly as per the manual. There's an odd thing with the D1 V8i with two wires that have to cross in a specific way and place to avoid misfiring.

    If its none of the above, replace the ignition module under/behind the coil (old Ford Escort module is identical) and be sure to use the dielectric grease when doing so.

    If that doesn't solve it, try changing the coil.

    If still doesn't solve it, burn it! :-)
    Hi. I did the wire from the coil to the battery,No joy. So its off to be released of my hard earned cash.

  8. #8
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    There are some simple tests you can do without replacing parts randomly. Its documented in this thread in the LR section (where your post should have been) http://www.4x4community.co.za/forum/...d.php?t=208072. Start by smelling the plugs or the exhaust.
    '09 Suzuki Grand Vitara 3.2

  9. #9
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    Quote Originally Posted by Geoff w View Post
    Hi. I did the wire from the coil to the battery,No joy. So its off to be released of my hard earned cash.
    First run the car in a dark garage with the bonnet open. Tell us what you see. If there's NO blue flashes, your plug wires should be fine. Are the wires LR OEM equipment? Did you check the routing against the manual? If not do these "free things" first.

    Next, try the ignition module. It shouldn't be very expensive and a spare is in any event always a *very* good idea in the bush. It can totally immobilise your machine and I *have* had one blow on me.
    Last edited by Clem; 2015/01/26 at 09:15 AM.

  10. #10
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    Hi Guys.
    I replaced the coil ,Ht leads and Amplifier module and still no luck.
    I checked the distributor and it looks ok.
    I did notice the coil gets very hot any ideas whats causing that.

    Thanks.

  11. #11
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    Are your leads on the correct cylinders. Don't some vehicles need a special coil with a resistor on/in them.
    Isuzu STD 2.5d 2x4 rear diffy lock
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  12. #12
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    Everything is in place according to the manual, And the coil is all there.

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