 | Home > Technical > Main relay on Defender? ** Car still randomly cutting out ** |
 
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605   
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Hi Blurry, Here's the section of the wiring diagram which is relevant to your problem  Click image to enlarge Check Fuse 15 again (ideally voltmeter from ground to each side of the fuse), even swap it for a known good one just to be sure. If it is not the fuse itself you have a problem in the the feed to the Header C0285. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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31st Dec 2020 12:05pm |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1076  
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and maybe you (blurry) could talk to DerekV who seems to have similiar problems: https://www.defender2.net/forum/topic76159.html
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31st Dec 2020 2:11pm |
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| Silver110 Member Since: 10 Jun 2020 Location: East Sussex Posts: 49  
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Can anyone shed any light on the below? After looking through a few threads this one seemed to be the nearest.
TIA
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31st Dec 2020 10:31pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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That sounds very like the ignition switch, which is not an uncommon failure unfortunately. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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1st Jan 2021 12:53am |
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| Silver110 Member Since: 10 Jun 2020 Location: East Sussex Posts: 49
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Great thank you I will give it a try.
Does anyone know if this ignition switch could have any link to brake system. Like brake servo/booster. Just seeing if that’s a seperate issue or not. Thank you x45kp for the guide. I am going to follow the same. |
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2nd Jan 2021 8:45am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17372 
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I cannot think of any way in which the ignition switch could be causing the brake issue, they sound to me like two completely independent problems.
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2nd Jan 2021 10:42am |
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| Dagonet Member Since: 15 May 2019 Location: London Posts: 10 
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This thread saved my wallet and a lot of grief! My 90 didn't start when I was queuing for the Eurotunnel in France. No slow fade, no symptoms leading up to it. Managed to push start and get home to Blighty, found this thread, ordered the part for £15 and got the job done in under an hour! My mechanic was going to charge me for hours of diagnostics and probably a new starter, not to mention being without the vehicle for days or weeks.
Chuffed to bits. |
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25th Oct 2022 6:23pm |
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| The Anti Christ Member Since: 24 Feb 2022 Location: Kingston Posts: 26  
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X4SKP,
Thank you so much for documenting your journey, and with such detail!!!. Seems to have helped many here, and now me! Had been experiencing an intermittant lazy start for the past two years. Impossible to diagnose cause whenever i showed it to any one she fired up fiercly. Fast forward two months ago, the slow cranking was getting critical and happening more often, so I decided it was time to change battery which at three years old, I suspected might have been at the root of the issue. With the brand new battery she started behaving properly again...problem solved! ....but then... Two weeks into it, her first cranks of the day started getting weak again. (only the first crank of the day mind you... after that she was pefect for the balance of our travels for that day). Then, one morning when she refused to turn at all..instead only making a click from under the hood, I felt certain my starter solenoid was failing... but then she started so perfectly on the second try that I wandered if it was overreacting, especially when my trusted auto electrician and others whose opinions i hold in high esteem, told me that sometimes these things happen and to "watch it for a while". Flash foward three weeks....got up one morning leaving for a journey across country, by now my habit was to leave the house clutching the keys to my backup auto, "just in case" she decides not to start that morning... Turned the key....nothing... not even a click.... jumped into my backup old faithful feeling deflated and decided to get a new starter first thing when i got back. So flash forward to after having the new starter fitted (Original Land Rover manufactured by Bosch).... She started fireing up like when she was brand new...hadn't heard that kinda enthusiasm that since about 2014! ....Problem solved! ..... but then.... About a week later, while I was still in the euphoria and confidence returning to take just one set of keys on me again... the type of confidence a man has only has when he has 100% certainty of his motor.... she failed to start again. this time, she'd try to turn, hitting the flywheel with all the might of a battering ram and cut out a split second afterward. No real crank.... more like a slam, then silence. Again and again and again. At first she would fire after a few attempts at ignition, until finaly it was too patheic to keep trying after 15 or more turns of the key.... the days where she would be fine after the first lazy crank of the day were ancient history. My friendly local LR mechanic had suggested we try changing the ignition switch if the issue continued as the next step, in our expensive process of elimination, a few weeks previous... so started looking at Plan C: Change the ignition switch and relay. Managed to get her started by bridging the ignition relay plug (at which she cranked and fired immediately) and went over my independents garage, where he managed to remove the ignition switch without having to take out the entire barrel assembly...YES...IT CAN BE DONE!! All you need is a tiny phillips head screw driver bit from one of those changable screw driver sets where the driver bit fits into a hexagonal socket on the end of the screwdriver. He also used a very small ring spanner for extra leverage, which was hardly neccessary since the rear screw came out with just finger rotation of the phillips driver head/bit. A bit of forethought by LR for future removals ? hmmm To be clear, all that holds the ignition switch into the ignition barrel are those two tiny screws, front and back. The back one you wont see at all...you have to feel your way around, preferably with slim hands. A bit fiddly but manageable. Could have done myself if I had that phillips head socket end and the determination...anyway...lesson learned. Anyway...Im very certain that this puzzle has been solved (again  ) and I can finally and permanently start to rebuild confidence in my go anywhere, do anything Landy.
Its awful feeling that 50/50 doubt every time you go to start up... Hopefully those days are behind us now. ...at least, until something else brakes 
Just fix it before your friends find out it broke again - Landy Life Forever! Last edited by The Anti Christ on 4th Jul 2023 2:00am. Edited 8 times in total |
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3rd Jul 2023 1:56am |
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| The Anti Christ Member Since: 24 Feb 2022 Location: Kingston Posts: 26
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BTW
Decided not to change the ignition relay. I suppose this offers an element of hope if the issue recurs  Just fix it before your friends find out it broke again - Landy Life Forever! |
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3rd Jul 2023 1:57am |
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| X4SKP Member Since: 29 Nov 2013 Location: Berkshire Posts: 2295 
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Hello ‘TAC’
Thanks… The ‘takeaway’ from this (for those suffering similar symptoms) is to better our experience and go for the low cost… relatively easy to check areas first, battery health (parasitic drain) earth points, starter relay and ignition switch. I faffed around in truth, missed the culprit  Lucus switch and ‘justified to myself’
that at least I’ve excluded the battery and starter motor by fitting new and in the process knowing that all connections were good. The starter motor is ok when you know, but aspects of its replacement are achieved ‘blind’. For me I got either a starting Defender or nothing… + intermittent… so as we know you live on never really knowing (initially) that you’ve found the fix… oh for a fault that comes and stays… happy days! Good luck… SKIP
https://www.defender2.net/forum/topic83242.html |
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3rd Jul 2023 10:00pm |
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| The Anti Christ Member Since: 24 Feb 2022 Location: Kingston Posts: 26
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Just fix it before your friends find out it broke again - Landy Life Forever! |
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4th Jul 2023 1:53am |
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