Member Since: 01 Sep 2012
Location: Angus
Posts: 15
I don't know if this helps or not as it wasn't a Disco, but I had a similar problem with both our Shogun and a Scooby, in both cases I re-torqued the rear hub nut and in both cases that was the end of the problem.
5th Dec 2018 12:30 pm
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
EMcC wrote:
Hi Bazz, no my other problems have all been to do with loss of Sat Nav, loss of Radio, loss of telephone connectivity, early warning for servicing, loss of tyre pressure monitoring or incorrect readings and finally spare tyre pressure needing attention.
In all cases they have been 'sorted' but returned and 'sorted' again more than once.
At the moment, fingers crossed, they have all been finally 'Sorted' and now all I have is the mystical Bump.
My present mileage is 7k so I would not expect any bushes to need attention just yet
Nor would I, but then I would also not expect any knocking sounds at all. It was the bumping up the kerb comment that got me thinking that way.
Nothing quite like an intermittent fault to occupy your time, I'm closing in on one or two of my own.
I hope you find your's soon.Disco 4 2012
5th Dec 2018 12:48 pm
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
I'm still trying to figure out this dreaded clunk noise in my D3
Could it be the transfer case drive chain, as it stretches with age/use, does it allow some slop/play in getting power to the front and rear prop shafts when power is applied
29th Dec 2018 9:58 am
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
I'm still trying to figure out this dreaded clunk noise in my D3
Could it be the transfer case drive chain, as it stretches with age/use, does it allow some slop/play in getting power to the front and rear prop shafts when power is applied
29th Dec 2018 9:59 am
Littlewill
Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
I'm not sure if I've mentioned it already in this thread but I recall reading something about California Bang (or thump?) there is apparently an update that reduces/fixes this?
29th Dec 2018 10:58 am
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
yep
its been mentioned, but I gather it does not 100% fix it.
29th Dec 2018 11:00 am
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
Littlewill wrote:
I'm not sure if I've mentioned it already in this thread but I recall reading something about California Bang (or thump?) there is apparently an update that reduces/fixes this?
Is that something a GAP II tool upgrade can fix/improve?Disco 4 2012
30th Dec 2018 10:35 am
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Yep contact Gap, pay them 25 quid and they send you the software, load it onto your iid and then load it onto your car, it aint perfect but it is certainly 100 percent better
30th Dec 2018 10:53 am
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
Yep contact Gap, pay them 25 quid and they send you the software, load it onto your iid and then load it onto your car, it aint perfect but it is certainly 100 percent better Thumbs Up
I tried that and they said I have the latest upgrade??????Disco 4 2012
23rd Feb 2019 7:23 pm
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
I found some of my clunk noise
Rear RHS drive shaft was knackered.
I had a mate around who is a mechanic, he went under the d3 (high suspension set) with the motor on and my foot very!!! firm on the brake I moved the auto transmission to D and then R.
And it was obvious, that my problem was at the rear RHS driveshaft, very noticeable thunk and excess driveshaft rotation in the CV near diff.
Replaced driveshaft and the car is mostly clunk free
24th Feb 2019 9:27 am
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Bazza. wrote:
Yep contact Gap, pay them 25 quid and they send you the software, load it onto your iid and then load it onto your car, it aint perfect but it is certainly 100 percent better Thumbs Up
I tried that and they said I have the latest upgrade??????
Ask pat for the software for the california stop, did you by any chance ask for the latest software for your iid instaed which is free?
24th Feb 2019 10:11 am
jsamuelson
Member Since: 07 Feb 2011
Location: Cornwall
Posts: 214
Another California clunker here, I did flash the gearbox with Pat’s help and it reduced but did not eliminate this. I think it’s something mechanical as Disco Mikey and others suggest, some play or slack in something being taken up by drive.
15th Apr 2019 11:36 am
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
Do as i suggested in above post,
Place suspensions in high mode, get someone you trust to turn car on and place foot very firmly on brake and with engine on place transmission into D then R and keep repeating, while you stick your head under the car and listen and view front and back prop and driveshafts.
it was obvious in my case, that the rear RHS drive shaft was shot, it was rotating nearly 1/6 of a turn, while the car was stationery. I replaced it and car was clunk free.
15th Apr 2019 10:02 pm
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
You can also put the axle up on stands and rotate each wheel. If there's any slap in the shaft it will show here. The opposing wheel should turn in the reverse direction when you turn a wheel there should be minimum slap between the two.Disco 4 2012
16th Jun 2019 6:52 pm
ScottyMac
Member Since: 18 Jan 2020
Location: Cumbria
Posts: 2
Fixed What Sounds Like This Issue
I know this is an old thread, but I had what sounds like this issue. It turned out to be a slow puncture on the passenger side front wheel bringing in the Dynamic Stability Control System or Traction Control (unsure which):
DYNAMIC STABILITY CONTROL
Dynamic Stability Control (DSC) optimises
vehicle stability, even in critical driving
situations. The system controls dynamic
stability when accelerating and when starting
from a standstill. Additionally, it identifies
unstable driving behaviour, such as understeer
and oversteer and helps to keep the vehicle
under control by manipulating the engine
output and applying the brakes at individual
wheels. Some noise may be generated when
the brakes are applied. The system is ready to
operate each time the engine is started
The symptoms were:
1. Initially a single thud or clunk from the rear end (like going over a "cats eye") when pulling away, between 5 and 10 miles per hour I think.
2. Then after about a week, 3 or 4 dull thuds or clunks inside about 1-1.5 seconds, the same "cats eye" type at the same kind of speed.
3. After about another 2-3 days I got the thuds and then a rumbling sound and slight feel of vibration. I didn't notice any degradation in performance.
So I trawled the forums for solutions and compiled a list of stuff I would check. The first and easiest was the drive shaft CV joints, there was nothing wrong with them.
While under the car, I happened to notice that the front left tyre looked low, I checked the pressure and sure enough it was at 1 bar.
I sorted out the tyre pressure and thereafter no clunking or rumbling.
Having had traction control kick in at low speed in the past due to rear bushes going bad, I came to the conclusion that the tyre issue was messing with the Traction Control or ABS. I looked into how the Traction Control system works and found the Dynamic Stability Control System description above. So for me it was a tyre issue, I don't know what else could bring in the DSC / Traction Control, bushes, etc?
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