Landrover Defender TD5 Oil Creep into the ECU
D3Sshooter
43,963 views
** All TD-5 will have this issue sooner or later **
This video is about Oil creeping into the ECU due to a worn seal in the Injector Harnas. A very common fault seen on many Defenders with the TD-5 Engine. Easy to identify and easy to fix. It will save a lot of hassle if you do check and replaced it if needed. In the video we show on how to diagnose, check , clean and replace the leaking injector harnas.
20 Comments
@dquad 4 years ago
I'm amazed that one would even design a system that could fail like this.
@brendonlush 11 days ago
Just cleaned out my ECU plug and Fuel rail connector + all of the Earth points under the seat next to the ECU... So much Oil! Thanks for the great video as always, D3S; very helpful for a first-time Defender TD5 owner!
@carlos76c 3 years ago
Ten years ago I dismantled each connector plug and soldereded carefully each cable to the injectors. So far everything is fine! I have 100% electric continuity, my TD5 engine starts at the first try really fast and the response is excellent. That was the last harness I changed.
@jonatday 4 years ago (edited)
For anyone working on these.........If you have headroom, the correct weather, the inclination, it's always best to work on Defender engine bays with the bonnet straight up or off, just leave a bungy permanently inside the bonnet along the right hand inside sheet metal inner bracing to hold it back against windscreen frame or roofrack if you have one (to inside seat belt top mount if nowhere else available to hook it back, you can still close the door ) so it doesn't fall on your head, it will hurt!
It makes all the operations shown here much easier with more light, even do it when checking coolant level as it's the only way to easily see it by looking down the cap, many people have lost £5000 by thinking they can see through the brown plastic bottle, which is a shame.
I always remove the orange seal and leave hanging over the ecu plug wire (the orange rectangular silicon ecu plug seal on the red plug,) keep it there if someone wants to put it back, it just prises out with a small pick. This is on Defenders with the wiring already contaminated in the main wiring harness, to allow oil to drain away a bit more before it forces its way more into the ecu by capillary action, the plug can handle so much oil, but too much shorts across the 5 yellow injector wires because of the carbon in the oil, oil is normally an insulator when clean. Obviously changing the injection inside the engine harness is the way forward, and hope stops it from getting worse. This hopefully avoids the need to change the much more expensive ouside the engine main harness.
And avoid cheap ecu harness with wrong wires, badly made......
Thanks for a great Video by the way. I'm sure it's helped many people......
It makes all the operations shown here much easier with more light, even do it when checking coolant level as it's the only way to easily see it by looking down the cap, many people have lost £5000 by thinking they can see through the brown plastic bottle, which is a shame.
I always remove the orange seal and leave hanging over the ecu plug wire (the orange rectangular silicon ecu plug seal on the red plug,) keep it there if someone wants to put it back, it just prises out with a small pick. This is on Defenders with the wiring already contaminated in the main wiring harness, to allow oil to drain away a bit more before it forces its way more into the ecu by capillary action, the plug can handle so much oil, but too much shorts across the 5 yellow injector wires because of the carbon in the oil, oil is normally an insulator when clean. Obviously changing the injection inside the engine harness is the way forward, and hope stops it from getting worse. This hopefully avoids the need to change the much more expensive ouside the engine main harness.
And avoid cheap ecu harness with wrong wires, badly made......
Thanks for a great Video by the way. I'm sure it's helped many people......
@kencharman 1 year ago
Excellent video. These vehicles have a curious charm that you capture just right.
@erichlausch9886 8 months ago
It sounds like many Belgian miners with their hammers in the engine compartment.😀 Good work as always
@Jabber-ig3iw 3 years ago
Injector wiring loom is a relatively cheap part and easy to change, treat it as a service item and change it every couple of years.
@peterwatson1094 3 years ago
Thanks Steve. Good pace, easy instruction. You give us mere mortals the confidence to have a go.
@johncollins8304 2 years ago
GREEEAT tip about not blowing directly onto plug because you will blow stuff INTO the ECU!
@JohnDavis-ed5sg 4 years ago (edited)
Very clear as usual. Injectors inside the rocker cover were always a bad idea for many reasons, but mainly because fuel can leak unseen from the supply side and dilute the oil, leading to bearing problems, so readers, if your oil level rises look into this quickly.(Just noticed I call it a 'rocker cover' - of course nowadays it's usually a valve cover - shows how old I am that the engines I'm used to have pushrods!)
@adammanir17 2 years ago
Your Land Rover repair videos are a lifesaver! I've been grappling with a persistent issue on my TD5 involving excessive black smoke and noticeable power loss. Your expertise in troubleshooting and fixing Land Rovers has been evident in your content, so I was wondering if you could shed some light on this particular issue. Your insights could not only help me but also countless others facing similar challenges. Looking forward to your thoughts on this!
@chrisjackson4457 4 years ago
Nice to see some Land Rover stuff from you Steve from a landrover man I am glad you have kept it 👍
@sergehorion7155 4 years ago
As I discovered your channel through your video about why we love Defenders, it’s only fair that you delivered at long last some other videos about Defenders. Not that I complain, I did enjoy most of your videos since then (except sport cars, not my thing).
@KyleMeyr 3 years ago
This was incredibly helpful. Was planning on changing the rocker gasket, but will now also change the injector harness while I'm at it. Fantastic guide, easy to follow and beautifully shot.
@circusfactory 4 years ago
top professional.
super quality video.
thanks so much.
(I just got a 2005 TF5 and all your knowledge is so helpful and informative)
super quality video.
thanks so much.
(I just got a 2005 TF5 and all your knowledge is so helpful and informative)
@alterbayer7196 4 years ago
Hi Steve .... i had (and have) the same problem .....
But MY ECU was down, has Oil inside and a electrical problem because of this ....
I must send my ECU to a Repair-Service....
Than i find out the Cables on the red Connector who transported that oil .....
Than i cutted this cables and soldering a Oil-Barrier between the ends of this cables ...
today and the next days i try to finish my work and i can start my TD5 .....
Greetings from Germany and stay safe
But MY ECU was down, has Oil inside and a electrical problem because of this ....
I must send my ECU to a Repair-Service....
Than i find out the Cables on the red Connector who transported that oil .....
Than i cutted this cables and soldering a Oil-Barrier between the ends of this cables ...
today and the next days i try to finish my work and i can start my TD5 .....
Greetings from Germany and stay safe
Landrover Defender TD5 Oil Creep into the ECU
D3Sshooter
43,963 views
** All TD-5 will have this issue sooner or later **
This video is about Oil creeping into the ECU due to a worn seal in the Injector Harnas. A very common fault seen on many Defenders with the TD-5 Engine. Easy to identify and easy to fix. It will save a lot of hassle if you do check and replaced it if needed. In the video we show on how to diagnose, check , clean and replace the leaking injector harnas.