Member Since: 28 Mar 2016
Location: Guildford
Posts: 22
Noisy TDV6 engine `chatter`.
I have just had the engine and turbo replaced by Land Rover on my Disco 3 that has covered 100k miles and has a flrsh. It would appear I have an odd noise which I am yet to get advice on and wonder if the forum has any ideas? I`ve done a search and there does seem some unresolved history of something similar with other members.
The new engine has covered less than 500 miles and I`m half way through a fresh tank of fuel with a good dose of Millers injector cleaner ........... no difference yet!
I immediately noticed on collection a `rapid pinking` / `chattering sewing machine` / `under water` type noise with acceleration in approximately the 1500 revs up to 2500 range coming from the engine. I would have said timing chain rattle if I knew what I was talking about, but I don't!
Nothing on start up and only comes on after a few minutes of driving then stays. The van drives perfectly well and is otherwise quiet but I hear the chatter and cant stop listening which saddens me in something that I had hoped would be 100%.
I`d love to be armed with some ideas as to what the noise might be if anyone can hazard a guess or better still from experience know what`s going on.
Many thanks, Robin.
20th Jun 2016 2:23 pm
Rich84
Member Since: 26 Jun 2013
Location: South Australia
Posts: 238
If it's a deep growl under load in that 1500-2500 rev range, it seems to be a normal thing for this drivetrain. It could be coming from the torque converter but noone seems to have a definitive answer on that one. Because the TC doesn't lock up for the first few minutes while the trans warms up, that could be why you don't start hearing it immediately.
If you can hear a clattery type noise under load, that's normal too - it's a diesel after all and there's no mistaking it for anything but a diesel, although it is much more refined than the Asian diesels.
Have you spoken to the workshop that carried out the job?2008 RRS TDV6 - Chawton White/Black/Lined Oak - 20's, h/k, sunroof - 350K KM.
2010 Audi A6 3.0T S-Line - Phamtom Black/exclusive 2-tone valcona 184K
2000 Audi A4 avant 1.8t Q Sport - Phantom Black/black 385K KM
1990 Nissan Pintara TRX - red - lots of mods - 439K KM
20th Jun 2016 11:48 pm
MGCarr
Member Since: 15 Jul 2014
Location: Lancashire
Posts: 703
I had a a tinny rattle at about 1500 to 2000 rpm, it was most noticeable if the driver's window was open and on a very light throttle. I spent a lot of time looking for loose heat shields etc because that was the sort of thing it sounded like. I recently fitted a reconditioned torque converter to cure the well known juddering under acceleration and an interesting side effect is that the rattle has been substantially reduced, so I would tend to support the theory that it is coming from the torque converter.
1997 Defender 90 for the kids and I to have a go at some competitive off road RTV and Tyro trials, daughter picked up her first trophy over the August Bank Holiday.
Previous Land Rover history
1996 P38 4.6 V8 Autobiography
1996 Discovery TDi 300
1972 Range Rover 3.5 V8
LWB Hard Top Series 3
LWB Truck Cab Series 2A
Not been without a Land Rover for over 40 years - I must need therapy!
21st Jun 2016 12:53 am
Somadoc
Member Since: 28 Mar 2016
Location: Guildford
Posts: 22
Thanks for the suggestions. I hadn't thought of the torque converter and the noise is a light chattering rather than any growling. I am yet to experience any significant juddering on acceleration, something to look forward to.
The injector noise shields are in place but when looking I did notice some `soot` around the top central clamps of the mesh covered silver pipes, EGR valves? on engine top. Could it be a `blowing` of some sort. I`ll keep my ears on it and get ready to communicate with LR over the next few weeks if it worsens.
Don't wait for it to worsen take it back and get it looked at.........!! ------------------------------
"Ruby"
Rimini Red 06MY TDV6 S
Xenons, Bright Pack, Climate Pack,
BAS Magic Box and Remap
ITG Air Filter
ERG's Blanked (Woody32)
Huge Permagrin
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Mines been like it for 14 months now, it has the tinny rattle on light throttle at low speed and has now recently started to growl every now and then, I wonder if its hungry for money
22nd Jun 2016 1:01 pm
Somadoc
Member Since: 28 Mar 2016
Location: Guildford
Posts: 22
`Tinny rattles` seem commonplace amongst the Disco 3 community. I expect with time the collective intellect of the group will have that `light bulb` moment. Let it be soon, before I get the `growl` set in.
22nd Jun 2016 1:30 pm
jamieroxy
Member Since: 28 Mar 2016
Location: Redditch
Posts: 72
I work at a main dealer and it is injector noise that most can hear under light throttle more so in the eu4 engine due to emissions regs
22nd Jun 2016 11:56 pm
Somadoc
Member Since: 28 Mar 2016
Location: Guildford
Posts: 22
That's really helpful, thank you. It confirms what my local main JLR dealer has just told me after a drive and listen. Diagnosed as a `known characteristic` of the piezo fuel injectors on these engines and not an issue. Fingers crossed this is it.
28th Jun 2016 4:54 pm
jamieroxy
Member Since: 28 Mar 2016
Location: Redditch
Posts: 72
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