Member Since: 07 Mar 2015
Location: Dorset UK
Posts: 234
So I am 2 years in with this problem, although I have not done many miles as it was the backup vehicle for my overland trip last year (in Africa you need it as parts are expensive and Landrover dealers limited over border from SA).
I sold the overland vehicle late last year so this is no my main transport. I have been in touch with ZA services South Africa over the last year, they had not come across this problem before. Earlier this week ZF have just opened an office in Durban so popped down to see them. Met the Lynton the Branch Manager and had a good chat. Their main focus is on this gearbox, ironically he said they have far more problems with the BMW's than the Landy's. He does not believe it is the TC but had this issue previously, after a lot of investigation they found it to be the catalytic converter rattling, not convinced by this.
So the the Disco continues to pull well, no judder and seamless gear changes, it is going in next week to have the investigation will let you know the outcome!Owning a Discovery 3 is like dating a model.. a firm body and shape, wow.. the ride is fantastic > for this your wallet can take a pounding and you worry about being deflated at any time...
2009 Model D3 HSE
22nd Jan 2017 9:23 am
Znatan
Member Since: 03 Apr 2015
Location: Israel
Posts: 47
Interesting. Let's wait and see
22nd Jan 2017 2:37 pm
MGCarr
Member Since: 15 Jul 2014
Location: Lancashire
Posts: 703
I am pretty confident that the noise comes from the torque converter and that a new torque converter will not necessarily eliminate it but will change it. About 12 months ago I had the noise that could be 'switched on and off' by the throttle position but I also had the dreaded torque converter judder, I replaced the torque converter and the judder disappeared completely but the noise changed in both tone and volume but did not go away. I now choose to ignore it.
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!
23rd Jan 2017 2:32 am
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
Any more updates on this as I’m interested in how people have got things sorted ?Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
8th Apr 2019 8:35 am
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
guys i have the same issue injectors changed, inter cooler pipe changed, turbo changed, oil/filter changed
im starting to think its the cross over pipe ????
when car idols it sounds fine but between 1500-2000 RPM i can hear a metallic clicking tapping with engine speed. Higher revs it gets a bit louder but also the engine gets louder too, it only happens when the engine is hotMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
8th Apr 2019 9:20 pm
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 440
Can I ask If this is not just diesel knock?
To pinpoint where it maybe coming from, try a piece of fuel pipe held to your ear, then hold the other end around the engine.
A long screwdriver held on your ear (handle end...), with the other pressed on various parts can also help diagnostics.2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
8th Apr 2019 10:18 pm
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
Thanks, have tried that with a piece of 1/4 dowel that’s why I changed the injectors due to the noise I could hear , they worked fine as I had a few checked but they were very noisy. The noise I’m trying to find now is as I’ve described so will be under the car checking other areas with my piece of dowelMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
8th Apr 2019 11:13 pm
porkolt74
Member Since: 18 Apr 2017
Location: Debrecen
Posts: 2
MGCarr wrote:
I am pretty confident that the noise comes from the torque converter and that a new torque converter will not necessarily eliminate it but will change it. About 12 months ago I had the noise that could be 'switched on and off' by the throttle position but I also had the dreaded torque converter judder, I replaced the torque converter and the judder disappeared completely but the noise changed in both tone and volume but did not go away. I now choose to ignore it.
I have this problem for two years. This sound came few moth after TC change.
The indiw transmittion technician told, the TC is perfect.
This noice is disturbing me. I don't know if it will damage the whole gearbox.
#MGCarr Do you still have this problem?
17th May 2019 5:48 pm
Graemevass
Member Since: 31 Jul 2020
Location: County Durham
Posts: 6
MattTheTall77 wrote:
Here you go martindg, mp3 converted to youtube vid
bah, chopped loads off, back in a few minutes lol
Should be sorted now
What is the air squeek , wooshing noise on and off throttle , like a dump valve ? , I have this issue with my Discovery 3 , it's driving me mad .
31st Jul 2020 9:11 pm
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
I’ve had for a while now and I’ve checked all pipes and clips, throttle body seals
I noticed it when it had a new turbo Fitted. The sound comes from what I believe is the air intake on the wing sounding like air rushing back out . Is it possible the the veri vaines are operating a bit early and the built up pressure is flowing back ? Just a random stab here. Hoping someone with a bit more turbo knowledge can helpMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
1st Aug 2020 7:47 am
Graemevass
Member Since: 31 Jul 2020
Location: County Durham
Posts: 6
Daz , I've check eveything too , i even took off my egr blanks and put gasket sealer on the metal gaskets incase that was causing it . You can hear it more in the wheel arches which makes no sense to me , as a broken crossover pipe wouldn't sound like this surely .
It's definitely Air related, i can't see it being anything to do with the torque converter or gearbox as valves with fluid in them cannot make this dump valve type noise . I guess I'm just going to start throwing money at the problem , starting with new egr valves removing the blanking shims and reconnecting the butterfly valve . Then i'll replace the intercooler hoses and the metal intercooler pipe.
I can't see it being the Turbo either as someone on here replaced the Turbo and still has this noise . But it sounds boost pressure related to me ...
1st Aug 2020 10:19 am
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
I’ve had a new turbo and I’ve got this noise so I’m stumped 🤔
My other disco has the egrs blanked also and it doesn’t make the dump valve noise
. Is it worth unplugging the egrs even though they’re blanked and see if it changes anything ?Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
5th Aug 2020 1:51 pm
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
My other disco is a manual thoughMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
5th Aug 2020 1:52 pm
Graemevass
Member Since: 31 Jul 2020
Location: County Durham
Posts: 6
It's weird isn't it, my noise isn't there when cold , but gets progressivly louder as the engine warms up , i don't think mine made this noise before i blanked the egrs , so i'll stick a new pair on and let you know if there is any change .. thanks Daz
5th Aug 2020 4:15 pm
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
👍🏻 Be good to get this done and dusted as I’ve seen a lot of ppl with the exact same issue. Not causing faults but doesn’t sound right at allMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
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for this your wallet can take a pounding and you worry about being deflated at any time...
