Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Ok thanks guess mechanic job it is then
I’ll try oil change just in case as I do have spare. Never know might have metallic dust inDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
24th Oct 2022 8:43 pm
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6358
rrhool wrote:
My gut feeling is that you're not going to fix it remotely. I think you're going to have to change the sensor.
if it throws the fault on re-calibration I would also put it down to faulty sensor
good luck
25th Oct 2022 6:25 am
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Updating on this….
Can the top of the gear box be accessed through the inside of the cab from above?
I can’t access it underneath by hand. Though I can locate it visually on an image it appears to be behind the crossover pipe.
May have to bite the bullet and go mechanic if can’t access from above
Just a thought as someone may have idea of in cab accessDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
25th Oct 2022 11:35 am
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4508
Nope. The only hole in the gearbox tunnel is the gear stick hole, and that's too far back.Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
25th Oct 2022 11:42 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6358
unless you feeling like cutting a hole in D3s floor for ease of access in the future?
25th Oct 2022 11:58 am
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Ok so now I can’t even get hold of my indie he’s just too busy
I’m thinking next is to drop the gear box?
Is this something I can do easily or is it a bad idea to do myself please?
I’ve got access to everything but a car lift
TiaDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
25th Oct 2022 3:53 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10664
Is it really a problem for your car ? Is it slowing it down ? (i know you get a P brake message)
If no, wait for the mech to be available.
It maybe wise to fit a new clutch while the gearbox is out. (save future labour costs)
Oh and you had the cross over exhaust fixed didn't you ?
Wasn't there a gearbox leak too ? Could get that fixed
25th Oct 2022 4:16 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Yeah then leak was fixed while the crossover and manifold were too
It’s not a problem unless I use 6th gear. But it’s one small of many problems that are making it hard to drive currently as also have a voltage issue combined problems are becoming annoying
Really don’t want to replace expensive things before their time is up either. Especially when these cars randomly die regularly.
I’l keep trying the mechanic just been about 2 months I’ve asked to come in 4 times now. Point of not answering calls.
Invested £500 on this gap tool to hopefully avoid big bills also.
I can just about get access to it with fingers. Could probably make a tool to undo the sensors bolts. But I can’t see any close up high resolution images of its fixed location online. I was hoping to see what size and type of bolts hold it on and try to blindly undo them carefully.
I think I can feel the wire going in to it on the passenger side above the prop shaft.
I did try wiggle the cable in and out and force the terminals to have some friction.
Wouldn’t think it’s a gear oil quality issue as it would happen in all gears?
Is there a gear oil level sensor on the d3 2004? Maybe the gear oil level is too low and it’s missing the 6th gear cog and it’s dry perhaps?Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
25th Oct 2022 4:27 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10664
I don't think its to do with the oil.
25th Oct 2022 4:38 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
I’m certain I’ve found it’s location above the gear oil filler at the top.
Two 4 or 6mm Alan key bolts to hold it in place. And the wiring runs down the right side.
I’m thinking of undoing the two bolts and seeing if I have enough room to lift the sensor out and then unclip wiring and inspect
Would this do any damage or have any risks? After the obvious not letting the bolts fall in the gear box and possibly disconnect battery?
Image attached Of location
Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
25th Oct 2022 11:00 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10664
The obvious worry is you go from a fault in 6th gear, to a fault in all gears.
If you think having it fixed is worth the risk.
26th Oct 2022 6:04 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6358
cmb2020 wrote:
I’m certain I’ve found it’s location above the gear oil filler at the top.
Two 4 or 6mm Alan key bolts to hold it in place. And the wiring runs down the right side.
I’m thinking of undoing the two bolts and seeing if I have enough room to lift the sensor out and then unclip wiring and inspect
Would this do any damage or have any risks? After the obvious not letting the bolts fall in the gear box and possibly disconnect battery?
Image attached Of location
not sure you gonna have enough space there to even reach the bolt with something to loosen them up not to mention pulling sensor out without at least dropping gearbox down and inch or two
remember not to damage breather pipe as that would produce immense oil leak while box is in operation
no need to disconnect battery after car goes to "sleep"
not sure what you like to inspect as the unit is solid from my memory hard to open up if you attempting this I would just go and replace the thing although do not remember if new one needs any SDD or similar tasks
Good luck
G
26th Oct 2022 7:52 am
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Good news I think! Also some potentially valuable tips for others who get the E of n dash and transmission fault etc
I may be wrong but a simple gear oil change seems to have done the job. Definitely has made a difference with a quick 1/2 mile test drive. Presuming as the fresh oil dilutes the old the metal dust will come off the sensor
Oil was only changed 10k miles ago if that!!
Some other things that may have helped and may help others:
Access the sensor from inside the gear box via the filler plug using a long spray tube for some electrical cleaner in between oil change. Pointing upwards may potentially free crud from sensor?
A few taps on the gear box with a hammer to lightly cause vibration to the sensor and it’s compoments, while someone does the gear stick (manual obvs)
This may sound stupid but I’ve seen it work on a ceased electrical tool before!
Wedge your hand right up the side next to the prop shaft. And wiggle the sensor plug connection back and forth to create friction on the terminals to wear away any corrosion
This has been bugging me for weeks but I’m certain it’s the gear oil
On that note I’m going to look for a magnetic sump plug for the gear oil. This has to be a design fault from LR not having them as standard as there’s definitely metal dust in the old oil.
If I find one that fits I’ll share the link
Hopefully helps people and avoid a big bill!
I’ve spent ages learning about this and see other threads stating differing symptoms. My specific symptoms were transmission fault in 6th gear. Every other gear was fine. Followed by EPB fault and yellow light. Which resets every time I restart the car. Until I go in to 6th gear. With a E on the dash.
Unable to complete the xy calibration routine as the fault was overriding
Going to drive the garage tomorrow and buy more 75w80 and change it again so it’s super clean and fresh.
Thanks as always for peoples help and hope the lessons learned help too Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
30th Oct 2022 2:39 pm
Breg90
Member Since: 04 Feb 2017
Location: Falkirk
Posts: 359
Don't want to be a doom monger, but 'There's definitely metal dust in the old oil' makes me think that the gearbox has an issue and the XYZ sensor is a symptom? You stated the oil was only 10,000 miles old?
Might be worth checking the oil for contamination again in a few 1000 miles. If contaminated look for a secondhand gearbox?Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits
30th Oct 2022 2:48 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Cheers I’ll do that then
It did have a leak for probably years and was just topped up monthly. Then got the breather pipe replaced a while back. Maybe the mechanic just topped up the old oil instead of doing fresh.
It was definitely in need of a change was brown and couldn’t see through it.Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
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