PUMA RATTLE

[gasman]

Can anyone with a Puma engine tell me if their engine sounds like a chaff cutter at certain speeds?
Honestly, its sounds like 50 pairs of false teeth going round in a washing machine.
I even asked to the amusement of Coopers, if the tappets were adjustable. Their reply was a bewildered, no their hydraulic. You idiot, Stimpy!:p

[POD]

Yep mine sounds like that. I believe it's something to do with the common-rail injection, I've never worried about it as from what I've read on here it's characteristic of the tdci engine.

[danske]

Hi. Mine is the same - only when accelerating between 1500 and 2000 revs - it's standard I believe ? Tried to get it rectified with new eCU etc , but no change. Had it for about 60000 KMs now ( now 110000kms ) car runs great though. So I'm just putting up with it and adding it to the list of LR idiosyncrasies . If you do decide to " fix it " and are successful , let me know !

[ATH]

Mine does it and it is apparently the injectors. I've got a remap and it's made very little difference.
At times the engine runs so sweet and then will rattle horribly for a while then off it goes again. Some say Transits do it as well but I've never heard one as noisy as this.
I've also found it helps if I don't wear my hearing aids........:D
AlanH.

[gvwow]

Hi All mine's the same. i got a replacement ecu and rattily noise still there
and between 1500 to 2000 rpm.
Reading about defender diesel's it's a quite one.

[n plus one]

Same same.

[Goulies]

Mine had the same problem, turns out it was dirty fuel (moisture) and and then the car needed the injectors re-programmed... all sweet now.

[danske]

Mine had the same problem, turns out it was dirty fuel (moisture) and and then the car needed the injectors re-programmed... all sweet now.

Can you share with us who fixed your rattle. Maybe they have the right process to fix what some of haven't been able to do ? Any info would be appreciated.

[gvwow]

Good call Danske, it would be good for any info would be appreciated .:D I thought a new ecu would be a reprogram. not that i would know, i just thought that ecu was the brain..
I'm sure someone will correct me ... if it not .... thanks

[Drover]

Just got the new Holden Colorado for work, it's engine noise is worse than my SVX.....seriously

[BilboBoggles]

The 2.4 Makes this horrible sound. Adding 2 Stroke oil to the fuel makes a difference, depends on the fuel that's in there.

The 2.2 does not do this , and sounds much better.

[ATH]

I'm off for a month soon and think I'll try this 2T oil when I fill up. Then depending on what that does I'll have the "injector learn" done but will have to find out who to trust the beast to for that.
I don't like morons who call themselves "LR experts" fiddling with my vehicle.:o
Any thoughts on decent tuners in WA?
AlanH.

[danske]

Allan,

good luck with the approach , if the oil approach does fix it , that would be an easy fix to a annoying issue.

ill await your findings with interest.

[big harold]

I have had the same problem with my 2.4 110 Been back to the dealers twice, third time I had the service manager come for a drive with me to listen to the noise. He could hear the rattle but proceeded to tell me that it was normal. I replied "wait a minute and my wife will be here with my 2.4 90. We went for a drive in the 90 and he agreed that the 110 was in fact noisy.
After 2 remaps they re installed the injector codes, that fixed the problem. But it is noisy again so I am thinking of buying a Nanocom and doing it myself.

[Brid]

The Common Rail Diesel injector rattle is cause by a deterioration in the injector's response to ECU signals. Pumps and injectors run high pressures, high temperatures and fine tolerances. Contaminants already in the fuel, contaminants formed by the fuel degrading in service, and/or loss of fuel lubricity can cause injectors to stick open too long. They then over fuel, and cause a detonation rattle, which can be damaging.

Our CRD Fuel Enhancer corrects and protects against this problem. I have posted details in "The Verandah" section for those interested.

Cheers
Brid

[Gerokent]

CRD fuel enhansor - two stroke oil. One has a fancy name and a fancy price tag, the othe is cheep and readily available.

[danske]

CRD fuel enhansor - two stroke oil. One has a fancy name and a fancy price tag, the othe is cheep and readily available.

Thanks for the information update , if this is so , then is it the same dosage as per CRD ? I did check website and it was expensive , so if two stroke oil is good to go , then I'll have a crack.

[Brid]

CRD fuel enhansor - two stroke oil. One has a fancy name and a fancy price tag, the othe is cheep and readily available.

Hehe! No...not really! You would need at least 5L of 2 Stroke oil to treat the diesel that 250mL of CRD Fuel Enhancer does.

[n plus one]

Hmmm, the more I read, the more I think my noise is just a general diesel clatter and not what others are experiencing - I might try an injector treat just for the sake if it (as I seem to have developed a bit if surging at low speed when the engine is still cold). Will report back on outcomes.

[firsttimedefender]

I also experience a general chatter whilst driving and have found a fuel treatment (diesel conditioner) helps. After a few thousand k's it gets worse and I do another treatment. Maybe its dirty fuel, water or wear and tear - there's a few different products (i've used a couple) out there but I like the liquimoly one. Shouldnt hurt for you to experiment but I'm not sure that its a good idea to use it every fill unless you always getting dodgey fuel.

[Iain_B]

I noticed my rattle varies depending on the fuel used. Over in WA and NT, hardly any rattle, but back in Brisbane, it was a lot more noticeable. I've just bought a bottle of CRD and will see what happens.

[Iain_B]

I poured in 10ml of the CRD into the tank this afternoon, and went for a drive. Within about 10 minutes, the difference was noticeable. We left the car for about two hours and then on our return trip, my wife commented about how much quieter it was.

The noisy rattle between 1500rpm and 2000 is gone, and it is much quieter even when lugging around a roundabout in 4th gear at 1100rpm.

Not sure about what adding two stroke oil would do, but this seems to have worked for me.

[Chops]

A while ago, I posted a question very similar to this regarding engine noise. Had some really good informative answers :).

http://www.aulro.com/afvb/technical-chatter/182510-noisy-diesel-engines-why.html

I might have to try a bottle of CRD

[Naks]

I chuck a bottle of Wynns diesel cleaner every 3000km or so and I add 2SO every 2nd tank.

Landy runs very smoothly ;)