Thread: TD5 STARTING PROBLEMS

The TD5 will start even with no oil pressure so while it appears to be a factor in your description it isn't.

How many Ks? it is possible that it could be injector washers

Have you checked the red plug on the ECU for oil contamination?

Red plug has a small amount of oil contamination and has been cleaned the injector harness has been replaced. The internals in the module are dry with no oil in the box. The vehicle has 160,000 Klms and I would think that if the injector washers were the problem I would also have the oil contamination which is part of the problem.

Not always the injector washers can leak air back into the fuel rail and cause this type of issue.
The leaking of the O rings at the top of the injectors will see diesel in the oil contamination.

Have you been able to hook a nanocom/faultmate onto it check for faults?

For something out of left field have you looked at this thread?
http://www.aulro.com/afvb/discovery-...e-harness.html

I'll keep an eye on this thread, yell if I can be of help.

Originally Posted by djam1

Not always the injector washers can leak air back into the fuel rail and cause this type of issue.
The leaking of the O rings at the top of the injectors will see diesel in the oil contamination.

I would support djam1's proposition that it could be the injector washers. I've recently replaced the washers in mine to cure hard starting, especially after a period layed up. The leaking seals cause fine air bubbles in the fuel lines which over time work there way up to the head as that's the highest point causing an air lock and hard starting. I could drive the TD5 on short runs to the shops without any problems - it would start easily again after a short stop as it takes time for the bubbles to rise. You will find plenty of similar threads if you search injector seals.

Thanks for the replies they are invaluable in trying to get to the bottom of the problem. In regards the harness, it is ok and another harness was purchased a while back due to the oil contamination problem but not fitted as yet. I have checked the current harness and it is fine with no chaffing or rubbing. In regards the sealing washers for the injectors, I would expect that with the head being the highest point for air to progress to if the seals were faulty would it not bleed out when the fuel pump is cycled??? I have run the pump until it stops multiple times so the system would purge the air from the system, but again to no avail and the hard starting. It is becoming a pain and I am second guessing things. I am nearing the point of just getting the thing started and driving to the nearest car yard and trading it in on another vehicle. I will be away on business for the next few days so hopefully I will get some more information to follow up on.

if you suspect injector washers or air in the system, fill the tank to the very top of the filler neck & then some more, purge the system as you watch the fuel for bubbles, run engine & watch for bubbles.

Hard starting on a Td5 is commonly the battery, it needs to be in tip top shape, the ECU needs a good 12v and cranking on a poor battery will take it well below. Hard starting after a layup indicates battery issue, put it on a good charger for 24hrs & try again, better still buy a new battery & dont spare the $$