Thread: Fuel injector loom, usual oil problem.......

I assume you have a td5 yes?

The ecu is a sealed unit so do not take it apart. Oil can not get into it, just capillary down from the injector loom through the main engine loom and then it gives the ecu wrong readings and fault codes.
Cure is replace the whole loom and injector loom. Don't forget to put a new rocker cover gasket on too as this will leak later on if you don't.
Pretty tough job to do if you dont have small girls hands than you can fit in between the inlet branches (yes that's me....no comments on small hands please haha) takes around 2-3hours stop to finish for your first one. Don't try and do it in a rush though and pay attention to the exact route of the old loom as if its not right you can melt the new one. Parts of it are tough but just stick with it and you will get there in the end.
Only ever fitted genuine ones, all I would trust for an important bit like that. Order it to your chassis number as there are 2 different types.

Oh and having a long thin flat blade screw driver to push down the retaining clip on the alternator plug makes life a lot easier

Hi Fonfe,
Excellent, yes I have a TD5, and yes I've figured out the vin number is significant and I've ordered the right one, as for replacing the whole loom, not right now, I'll leave that for a rainy day, I'm going to start with the injector loom.
Thanks for all the hints and tips it is nice to hear from someone who has actually done the job and not heard about the job from the neighbours best friends uncle.
I'm going to be changing the head gasket as a precautionary measure before my trip later on in the year so I'm going to do everything at once I'm just going to do the loom now. If I get excited I might do the loom when I do the head gasket.

Thank you.

Anytime mate,
If theres oil by the ecu change the whole lot mate, itl just slowly travel down again even if you change the injector loom, may aswell do the whole lot in one.

Why you doing the head gasket? Td5 isn't known for head gasket issues?
Never seen one done in the past7 years in a dealer?

HI Fonfe,
Why do I want to do the head gasket, damn good question.............. I've heard nightmare stories about some of the D2 TD5 motors and cracked heads so I assumed the worst. Mine is using a small amount of water, not a lot and I can't see any external leakage or staining. Considering what is involved and the fact I want to clean all the gunge out of the inlet side from the EGR valve now getting rid of the EGR "system", seemed like a good idea at the time.
Do you have any pearls of wisdom that could explain the small loss of water?

If the head is cracked doing the head gasket won't help it, You would need a new head. BUT put a pressure tester on the coolant system, give it 2bar and see if it drops. If it does find where it's coming out before you go ripping the head off. Check the heater matrix too.

Originally Posted by Nomad9

HI Fonfe,
Why do I want to do the head gasket, damn good question.............. I've heard nightmare stories about some of the D2 TD5 motors and cracked heads so I assumed the worst. Mine is using a small amount of water, not a lot and I can't see any external leakage or staining. Considering what is involved and the fact I want to clean all the gunge out of the inlet side from the EGR valve now getting rid of the EGR "system", seemed like a good idea at the time.
Do you have any pearls of wisdom that could explain the small loss of water?

How much water is a little, mine sits just below the low mark, it has found its own level, and has never used any. If I fill it above the low mark next time i check it it's below the low mark again. Haven't touched it for 12months now and its never changed, just below the low mark is where its happy

Originally Posted by fonfe

Why you doing the head gasket? Td5 isn't known for head gasket issues?
Never seen one done in the past7 years in a dealer?

You're kidding right?
Head gasket and oil pump bolt are probably the two most common serious issues with the Td5.
At just under 270k kms it's the right time to be doing the HG as well, particularly before a big trip.
When/if you do the HG, get your head pressure tested and skimmed if necessary, and give the head a good clean up. Then you'll be fine for the next 270k kms

Nope not joking.

To be fair most of the work I've done has been 05 onwards range rovers in dealer (yes i was lucky enough to do that dam front diff recall....oh those were the days) but have seen a lot of TD5s and yes have known they do head gaskets but I wouldn't say that they do more than any other engine does.....no where near something like the k series engine so didnt class it as a "known big issue"
At 270k that's 167k miles......do you really expect any engine to last that long without major work? If you do then your expecting quite a lot from it in my book
Is it an Aussie thing because of the heat? Or do people just not fix coolant leaks and let them overheat all the time till the heads crack? Neverless I'd still be doing a coolant pressure test to be sure its not a coolant leak that's not related to the head...nothing to lose after all.

Most common things I've done on td5 are injectors, fuel pressure regulator, loom oil ingress and duel mass flywheel.....thought they were the only main "issues"with em till now but obviously people expect more from an engine over here