The Toyota Landcruiser Owners Club

Knocknock · Newbie Joined: 05 Oct 2018 Posts: 1 Location: Uk

I've recently bought a 2006 Land Cruiser with the 1KD FDV engine. It's done 100k miles and generally runs well, but it has issues when it's cold. It starts up fine and idles well, but as soon as I drive off in it, there is this horrible loud rattle / knocking sound from the engine. This only lasts very briefly and as soon as the temperature gauge moves, the noise disappears and it runs perfectly.

I'm not a mechanic but I know more than the basics and I've been everywhere obvious. It's freshly serviced with the correct oil. I took it to a so called diesel specialist who tested the injectors and condemned them, saying the figures were all wrong during a test. . I reluctantly bought a set of brand new genuine Denso injectors and a set of heater plugs, put it all back together, started it up, only to find exactly the same problem still there.

I've had all the software updates done, I'm about a thousand pounds lighter and I'm losing sleep.

I see that this is quite a common fault on the forums, but no one has a definitive answer or solution.

Can anyone offer some constructive advice based on experience?

Many thanks.

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andy · Posted: Sat Oct 06, 2018 14:34 Post subject:

Loads of very long threads on here and other sites regarding this, I think Toyota did a service type of recall to rectify the problem, read http://www.tlocuk.co.uk/forums/viewtopic.php?t=11831

Also you say you fitted injectors, so did you get them set electronically to the vehicle ?
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Sirdread · * Joined: 23 Sep 2015 Posts: 10 Location: Castleford

Did you check the oil pickup pipe on the sump when you did the injectors for partial blockage ? Could be restricting the oil till its warmed up and thinner.

mike adams · ** Joined: 16 Feb 2012 Posts: 62 Location: Surrey, England

I would recommend you buy an adaptor lead to go from the OBD port to a laptop and download the free techstream software. You can then see the injector feedback values for yourself at hot and cold and if they are within spec. Like you I changed the injectors but still have some noise when cold. I think if you are running an old LC this is not the best engine to have and I don't think I would buy another one depite it being a nice vehicle overall. I just get the feeling it might let go at any time now (120K). Never had any engine problems with all my previous LC's going back to 1982 and still have a 2H engine going strong in a boat some twenty years after the car rusted away.

MetalDonkey · Newbie Joined: 08 Apr 2018 Posts: 3 Location: London

I have an LC5 with the same rattle you describe . I have checked the injector values and two injectors are out of tolerance.
If you check some of the Australian forums you will see that this is a common problem, nobody seems to know the true cause of what is happening.
I tend to drive slowly for the first couple of miles until the engine is warm then it is ok. As long as it is not blowing any colour of smoke you should be fine.
Hope this helps and yes it sounds like a sowing machine..

MetalDonkey · Newbie Joined: 08 Apr 2018 Posts: 3 Location: London

mike adams · ** Joined: 16 Feb 2012 Posts: 62 Location: Surrey, England

When I replaced my injectors with denso recon ones some 3000 miles ago the injector feedback values were all less than +/-1.0. Now I have checked them again and they are 2.6, 0.3 -1.8,-1.3 and the rattle has returned. Not much better than the ones I replaced. I am not keen to remove them and send them back because of the cost of new injector pipes etc.
How would I know if the ECU has adjusted the injection period for smooth tickover or it is a problem with the injector(S)?

liongeorge · * Joined: 01 Apr 2015 Posts: 48 Location: Wilts

My 04 120 rattles a bit for the first mile when cold. It is distinctly a diesel rattle. I am an ag engineer and it wouldn't seem to me a dramaticly dangerous thing that will wreck the engine and has nothing to do with the injector seals fault discussed in other threads.
Could it not be simply be the ECU over fueling or changing the timing whilst cold starting/ running?

Juddian · **** Joined: 31 Jan 2015 Posts: 374 Location: Homeboy

timbo · ** Joined: 15 Apr 2008 Posts: 84 Location: Dorset

we have an LC3 03my, it has always been noisy when cold, it now has 160k on the clock, I was told the noise was due to the ecu altering the timing in order to warm up the cat, infact as mine warms up and the temp gauge needle reaches a particular point you can hear the engine suddenly get noticeably quieter.
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