Turboman
Mab An Gov
- Posts
- 60,151
- Location
- Lathrowda, Kernow
Just for starters, excuse the pun, try disconnecting the battery, leave it for a while, and re-connect.
Defender 110 TD5 won't start...
- Thread starter Roy77
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Just for starters, excuse the pun, try disconnecting the battery, leave it for a while, and re-connect.
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
No mate just security code for radio but I suspect that's least of your worries!
R.e oil in red connector, to be clear is it the large rectangular red plug in the engine ecu? If that's is contaminated with oil it can cause non starting in extreme cases. Clean out with red plug and ecu socket electrical contact cleaner, also try removing ecu and leaving to drain overnight with plug sockets facing down.
Did you find any chafed or broken wired in the loom? You said in convo the loom was wrapped around components so I wonder if it's sustained damage and there's a bad connection somewhere
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
Turboman
Mab An Gov
- Posts
- 60,151
- Location
- Lathrowda, Kernow
Read the posts of Smithy^^^^^^^^^^^^.
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
If you've disconnected the inertia button as well I imagine that may need resetting by pressing the button
Dear smithy, You are right my friend.. the kids give me a sing song instead 
regards the red rectangular connector..yes given it a clean but will do as you suggest disconnecting & allowing it to stand upside down overnight. What is the switch you are pointing to? (inertia switch?) No chaffing to wires visible was very careful... only a 2002 Td5 Landy.
regards the red rectangular connector..yes given it a clean but will do as you suggest disconnecting & allowing it to stand upside down overnight. What is the switch you are pointing to? (inertia switch?) No chaffing to wires visible was very careful... only a 2002 Td5 Landy.
Turboman
Mab An Gov
- Posts
- 60,151
- Location
- Lathrowda, Kernow
Dear smithy, You are right my friend.. the kids give me a sing song instead
regards the red rectangular connector..yes given it a clean but will do as you suggest disconnecting & allowing it to stand upside down overnight. What is the switch you are pointing to? (inertia switch?) No chaffing to wires visible was very careful... only a 2002 Td5 Landy.
I think the inertia switch cuts the fuel in an impact.
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
Yep inertia switch mate. In event if accident or roll over etc it cuts power to engine to prevent all sorts of nastiness. It's reset by pressing the button on top of the housing. I suspect disconnecting it may have set it off. Could be wrong but it's worth a shot, give him a good press
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
Did yer find it? The suspense is unbearable
Stop your lark Smithy... the kids are mocking me now lol Bless yer heart mateDid yer find it? The suspense is unbearable
))
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
It can be that sudden to be fair, I had it on my disco fine then 1 day cut out on motorway, wouldn't start. New injector harness and cleaned ecu then me fuel pump packed up
If it's flooded ecu socket it needs to be left to drain and use a **** load of contact cleaner. Hopefully it's just that and it's easy fix to replace injector harness
Turboman
Mab An Gov
- Posts
- 60,151
- Location
- Lathrowda, Kernow
Guessing you haven't owned a Td5 for long?
A landrover is not quite like other vehicles. They can be quite reliable, but there are certain things you need to do, like changing injector harness on Td5. And some of those things may not be listed in manuals, you just have to know.
But if you, or the previous owner, haven't done those simple things, some or all of them will let you down at some stage.
If you really know the vehicle, and stay on top of maintenance, they can be very reliable. But it is a learning curve at first.
- Posts
- 7,898
- Location
- East Midlands
Yes, i think it is probably something to do with the fact that the wiring looms (and possibly the ECU) are awash with oil, rather than the brake pipes. The bit that needs changing is the injector loom, that goes inside the cylinder head. The main engine loom that goes from the ECU to various places can be salvaged by soaking the plugs in contact cleaner and leaving them pointing upside down so the residue can drain out. The big red one that goes in the ECU and the smaller round one that joins onto the cylinder head will benefit from this treatment. As above, give the female socket on the ECU a good going over with contact cleaner and leave it with the socket facing downwards to drain. The smaller loom that goes in the cylinder head has had it. Once they've got oil in the wrong places they're never the same. Just get a new one, they're only about £30 last time I did mine.
The fact that oil has got all the way from the cylinder head to the ECU under the seat suggests this has been going on a long time as that's a long way for oil to go. TD5 wiring looms are prone to problems as the insulation and the wires themselves are apt to chafe and go brittle, so they develop intermittent faults deep inside. You can't often see this because it happens inside the corrugated plastic tubing in which they are sheathed. Add a bit of oil with a fine suspension of metal particles and you can imagine what happens. Anyway, clean the plugs and replace the injector loom and see if she'll fire.
The fact that oil has got all the way from the cylinder head to the ECU under the seat suggests this has been going on a long time as that's a long way for oil to go. TD5 wiring looms are prone to problems as the insulation and the wires themselves are apt to chafe and go brittle, so they develop intermittent faults deep inside. You can't often see this because it happens inside the corrugated plastic tubing in which they are sheathed. Add a bit of oil with a fine suspension of metal particles and you can imagine what happens. Anyway, clean the plugs and replace the injector loom and see if she'll fire.
Last edited:
Hello Mr Brown,
I'm really grateful to you for such a comprehensive to do list. As I previously said in some of the replies in my original post. I did not disconnect the battery to change the offside brake pipe (which I would normally have done)... then like a fool I disconnected some of the (wires in corrugated plastic tubing) connections directly under the plastic radiator filler tank & fed the wires toward the back of the vehicle to make some room for the new pipe which was getting tangled up on the chassis etc. Fitted everything back together - bleed the brakes & the Landy won't crank/turnover. Got all my dashboard lights, indicators, windscreen wipers etc though.
Have used plenty of contact cleaner on the big red connector but am wondering if I've got a busted ECU???
Also cleaned up the connectors I disassembled. I get paid in a few days time so will clean or replace my glow plugs & replace the injector loom like you said.
The knowledge you boys on here have is incredible. So helpful. Thank you to everyone whose chipped in with advice. I will let you all know how I get on. Will get some AA or green flag cover very soon. Thank god my wheels are outside my house & don't require recovering from some where.
Many thanks
I'm really grateful to you for such a comprehensive to do list. As I previously said in some of the replies in my original post. I did not disconnect the battery to change the offside brake pipe (which I would normally have done)... then like a fool I disconnected some of the (wires in corrugated plastic tubing) connections directly under the plastic radiator filler tank & fed the wires toward the back of the vehicle to make some room for the new pipe which was getting tangled up on the chassis etc. Fitted everything back together - bleed the brakes & the Landy won't crank/turnover. Got all my dashboard lights, indicators, windscreen wipers etc though.
Have used plenty of contact cleaner on the big red connector but am wondering if I've got a busted ECU???
Also cleaned up the connectors I disassembled. I get paid in a few days time so will clean or replace my glow plugs & replace the injector loom like you said.
The knowledge you boys on here have is incredible. So helpful. Thank you to everyone whose chipped in with advice. I will let you all know how I get on. Will get some AA or green flag cover very soon. Thank god my wheels are outside my house & don't require recovering from some where.
Many thanks
1988smithy
Well-Known Member
- Posts
- 4,048
- Location
- West midlands
Make sure you clean the corresponding socket on the ECU as well! Chin up you'll get it sorted.
