TD4 Injector change URGENT ADVICE NEEDED PLEASE!!!

Hi all.

I have had a lot of bother with my TD4 and after researching these excellent forums I have got myself 4 replacement injectors which are used, low mileage and from a TD4.

I am about to set out and change them in the morning but someone has told me that I won't be able to swap them as if I do it won't run unless they are coded by a LR Dealer.

Can someone advise me urgently if this is true or if I should be able to just swap them?

Many thanks in advance.

David

who ever told you that is talking ****e and you should punch them in the nose

yep..hit them cos they are a cock

I find using barb wire across the testicles works just fine

Hi Guys

Thanks - I am so grateful for the messages - and the next time I see him he will get the barbed wire and testicle treatment for sure!

I will confess as to who told me though - it was a mechanic that came out from my breakdown organisation yesterday as the old landy just decided it didn't want to idle or produce sufficient power.

I mentioned that I was about to change the injectors when he told me that I couldn't as they were coded.

Will go and do it now and report back - really both, I'm very grateful. Thanks!

Also check the contacts on the fuel rail pressure sensor are clean, when was the last time your crank case breather filter was changed and low pressure fuel pump can also cause these problems.

maybe getting confused with the td5 ? td4 deffo don't need coding. good luck

Even the TD5 will run without re-coding - mine did for about 4 months before I re-coded the injectors it came with when I bought it, and God only knows how long before I bought it. Re-coding didn't make a whole world of difference either, yes it ran sweeter, but nothing earth shattering.

Is it a hard job to remove the injectors as the garage that are changing mine under warranty are saying they normally break on removal and its taking them ages to change one - I'm beginning to smell a rat to be honest!

markwizard said:

Is it a hard job to remove the injectors as the garage that are changing mine under warranty are saying they normally break on removal and its taking them ages to change one - I'm beginning to smell a rat to be honest!

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It can be a big job if they have never been out and the vehicle is older. Mine is an 03 and my local friendly all makes garage did mine - it took him hours of persuasion and copious amounts of WD40 - he repaired a stud on the collar and a heater plug as well as few other little things and put it all back - he charged me £130 which I thought was a good deal for me.

I then had cause to get them out again a few weeks later - suspected an injector down - I did the job myself and they came out easy - job done in a couple of hours.

The biggest problem as I experienced it is the studs holding the collars around the injectors rust and snap - this is what happened to mine - then it's a cam cover off job and if you are lucky as I was they can be easily removed - if not it's a head off job!!!

He replaced all the studs on mine and used lots of copaslip for next time!

Interesting I think what makes the studs rust is a cracked right angle fitting on the windscreen washers leaks onto the cover and gets down to a couple of the studs setting in the rust cycle! - replace the right angle fitting by just removing it and use the rubber pipe directly to it!

Don't forget if you take injectors out you need to have new washers St the base and rubber o rings. And fit new studs St spprox £30 the set. Check the collars for cracks - one of mine was broken in two!

Thanks Angeloc - sounds like they might be telling the truth after all!

markwizard said:

Thanks Angeloc - sounds like they might be telling the truth after all!

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Yes to be fair it's one of those jobs that is best not rushed - if stuck a can of wd40 throughout the day can be time well spent but they should not charge you while it's soaking in.

How old and how many mikes is the vehicle?

and they do carbon up making removal impossible without removing the head.

Its 2003 with 111K miles

Thanks

freelance said:

and they do carbon up making removal impossible without removing the head.

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Another excellent reason to use millers or some other cleaner every fillup as well as getting rid of the egr.

Hi All.
I got the injectors out after "inventing" a tool. Essentially I took the top nut off the injector which came away with the plastic electrical connection. I then took off all the plastic etc and removed the nut. I welded the nut to another that fir the threaded rod of my slide hammer and bingo - an easy removal tool - all be it I had to destroy the busted injectors but this allowed me to remove all 4 with the minimum of fuss. If anyone is interested I can put some pictures on here - I also used an old modified injector to lap the copper washers clean so didn't have the balls ache of trying to remove them. Anyway - thank you all for your help........I am about to launch another thread as things are not much better under my landy bonnet.......

03freelander said:

Hi All.
I got the injectors out after "inventing" a tool. Essentially I took the top nut off the injector which came away with the plastic electrical connection. I then took off all the plastic etc and removed the nut. I welded the nut to another that fir the threaded rod of my slide hammer and bingo - an easy removal tool - all be it I had to destroy the busted injectors but this allowed me to remove all 4 with the minimum of fuss. If anyone is interested I can put some pictures on here - I also used an old modified injector to lap the copper washers clean so didn't have the balls ache of trying to remove them. Anyway - thank you all for your help........I am about to launch another thread as things are not much better under my landy bonnet.......

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This is what the mechanic had to do for me in a round about way. He welded a slide hammer to the top of the injector. Photos would be really useful incase I need to change another one outside of warranty.

Thanks

03freelander said:

Hi All.
I got the injectors out after "inventing" a tool. Essentially I took the top nut off the injector which came away with the plastic electrical connection. I then took off all the plastic etc and removed the nut. I welded the nut to another that fir the threaded rod of my slide hammer and bingo - an easy removal tool - all be it I had to destroy the busted injectors but this allowed me to remove all 4 with the minimum of fuss. If anyone is interested I can put some pictures on here - I also used an old modified injector to lap the copper washers clean so didn't have the balls ache of trying to remove them. Anyway - thank you all for your help........I am about to launch another thread as things are not much better under my landy bonnet.......

Click to expand...

Please send me pictures or diagrams for injectors removing tool. I will doing that job again for the td4 after removing ones for S 40 volvo and Dodge caliber successfully.

Never had to destroy an injector to remove it. Too tight for that !!

Warm engine, remove clamp, thin steel bar on inlet to prevent damage. Use pry bar. Never had a problem. Maybe just lucky !?!?

Thanks for the reply . I m trying to remove mine from a car that does not start after carrying out extensive tests. Done the resistance test , they all seem ok. Next will do the flow test to identify blockage and finally the click test..

I will try your method and see if it works.