Thread: What happened to your D3/D4 today?

I saw this the other day. It's for a RRS but it should work for the D3/4 and may help.

Range Rover Sport Transfer Case Control Module FIX | HDC Fault Transmission Fault - YouTube

Originally Posted by cripesamighty

I saw this the other day. It's for a RRS but it should work for the D3/4 and may help.

Range Rover Sport Transfer Case Control Module FIX | HDC Fault Transmission Fault - YouTube

I was wondering where the module was. Is the rear e.diff controlled via that same module? The P80A-00 code indicates its the rear diff clutch position sensor. Now whether that is the module you described, the sensor or corroded connectors in the loom who would know.

Might have to get a can of contact cleaner from jaycar and have a play. Will try to keep it going till the weekend.

Rear Diff

• P0806-00 (2F) Clutch position sensor - circuit range/performance
  ( on 12-06-2021 10:45:42 at 286654 km )

After selling the old D4 with my hand made drawers I needed a replacement one so the start of a new build. I did look at the titan drawers and could of bought for $100 used but they come in at 71 Kg so not that keen on the weight, also unsure the access was good for the spare tyre.

1. this is the gap i left for the drawer and bottom tailgate - allows me to put some small items between the drawer and tailgate which can be handy (did this with my previous one as well)

2. rear of the drawer angled this time round to reflect the backs of the middle row of seats - utilising all the cargo space

3. rear drawer in place - is 900mm wide which is the exact same dimensions as the width of the 3rd row seats

4. upright supports are 250mm + top 12mm + bottom 12mm plywood then a spacer of 2-3cm to allow the drawer to slide out and not interfere with the tailgate when tailgate is lowered. Needs carpet but should be just about flush with the bottom tailgate in the upper position on one side for easy access.

Just another quick run to Barossa and back yesterday afternoon to pick up Emma from her girls weekend/50th birthday.

bit more done today...

1. the top and bottom is plywood 12mm, upright supports are pine and thicker 19mm from memory so needed to loose weight which is why i have cut three holes in each 3 uprights

2. had i planned this better i would have cut the centre support whilst outside, but holes are big enough to put my elbow through so no worries drilling them out

3. rear end capped off. did a bit of sanding to tidy things up a little. still working on the spare access which is likely to be from in front of the drawers no need to remove anything to access.

[QUOTE=PeterJ;3007968]

Originally Posted by PeterJ

New shoes today, after much deliberation and research (especially here) I went for 255/60 R18 Pirelli AT-Plus................... Too early for much else, in 3 weeks I will be back from a trip north in SA so I will add some comments then.


Well, not quite back yet but here I sit 20km outside Hawker and some time to do a post because it is bucketing outside and cold.
Previously mentioned ride improvement really appreciated.
Towed the van (3.2T) up to Bendleby Station, for those not aware a property in SA mid-North that has some excellent 4WDing. Pressures set (cold) were 250kPa Front (36psi) and 300kPa rear (43psi). I started with these pressures from my experience with the D697s. The tyre temperatures were cool (low to mid 20s) while driving and pressures increased by 15kPa front and 25kPa rear. So in the future I may revise my initial pressures down a bit but I want a bit more time with these tyres first to see how different conditions might change things.

Spent 5 days around Bendleby, (a bit OT but never mind, this vehicles ability to climb just never ceases to amase, there are some excellent tracks, with some really steep climbs and the "slow as possible fast as necessary" in the D4 is just gravity defying at times.....anyway) dropped the tyre pressures to 175kPa (25psi) all round and had no traction issues at all, no tyre damage to sidewall or tread area, really excellent. Bendleby is very rocky,(big, bigger and ugly, they have them all) as well as shale, slate and general loose surfaces.

Headed off to Arkaroola via Blinman, dropped the road pressures 50kPa at the front and 70kPa at the rear so 200 (29psi) and 230kPa (33psi), speed stayed down to a maximum of 80kph on the (very infrequent) smooth sections but it was mainly 50 to 70 kph depending on corrugations and rocks, lots of rocks. Back via the road to Copley (generally much better except for the floodways) The ride at the reduced pressures was excellent, pressures increased 20 to 30kpa over cold but temperatures varied quite a bit more than previously (1deg at Arkaroola when we left) so I was mindful of the effect on pressure with the changing temperature. Again, as above, no tyre damage at all.

At this point (1000km in) I am very impressed with these tyres.

10500km update since the initial post.
Approximately 80% of this distance has been completed with the car laden and towing the van, including 1000km or so of unsealed roads/tracks.

Tyres new have 10mm tread depth measured to the bottom of the tread groove, so 8mm usuable if you factor in the tread wear bar. I just find it easier to measure to the bottom and correct the values. Measurements were taken across the tyre in 3 places at 0 (valve stem) 90, 180 and 270 degrees and I have summerised the values here and they are corrected so you see usable tread depth.

Fr L/H - 6mm, Fr R/H - 6mm, Rr L/H - 5mm, Rr R/H 5.5mm. So reasonably consistant with the rears wearing slightly more than the fronts and given the load totally understandable. The measurements showed no great variation across the tyres at any location indicating to me that the wheel alignment and pressures are in the ball park.

New tyres fitted to the front (the 2 spares) and rears refitted to original location. I will do a tyre rotation at some point during the trip and move the original fronts, which are the 2 spares to the rear and the rears will become the spares.

Wear rates indicate toward 40 ~ 45,000km life, which taken at face value does not seem all that good but comparable life to the D697's they replaced and they cost quite a bit less per tyre, if I remember correctly around $100 each

There is no tyre damage to any of the tyres and overall performance has been excellent, noise is still low, handling excellent (not much wet road to consider yet), dirt road and off-road (4WDing) but not much sand evaluation in all that either but the beach work I have done was uneventful.

20,000km update - NT/WA Trip, currently at Broome, lots of bitumen to get here in this additional 10,000km but also post Keep River N/P, Ivanhoe road to Wyndham, Gibb River road to Derby and off shoots, down the Tanami to Wolfe Creek Crater and back and quite a bit of other off sealed road work, so perhaps 2000km in all. Towing the van 95% of the distance accumulated.

Fr L/H - 5.5mm, Fr R/H - 5.5mm (both new at 8mm), Rr L/H 3.8mm, Rr R/H 3.4mm (all measurements are usable tread depth above the wear bars) As previously noted the wear rates seem to point closer to the 40,000km life but I think I will look at it on a cost basis rather than just a km basis.

Same comments as above with respect to overall performance. There is some slight tread damage, especially to the rears (less tread depth so that is to be expected) and the Rr R/H has 0.5mm wear difference across the tread that was not evident before, but basically I have had no tyre issues since leaving, dropped pressures to 175kPa front and 250 kPa rear initially then tried 200kPa rear for dirt road work and 250 Fr & 340 kPa rear for sealed.

Overall, very happy and will certainly consider replacing these with the same if no other option presents.

Peter

Hi Peter.

First 0.5 to 1mm of wear would be block compaction, so wear rate should slow slightly.

[QUOTE=PeterJ;3091025]

Originally Posted by PeterJ

10500km update since the initial post.
Approximately 80% of this distance has been completed with the car laden and towing the van, including 1000km or so of unsealed roads/tracks.

Tyres new have 10mm tread depth measured to the bottom of the tread groove, so 8mm usuable if you factor in the tread wear bar. I just find it easier to measure to the bottom and correct the values. Measurements were taken across the tyre in 3 places at 0 (valve stem) 90, 180 and 270 degrees and I have summerised the values here and they are corrected so you see usable tread depth.

Fr L/H - 6mm, Fr R/H - 6mm, Rr L/H - 5mm, Rr R/H 5.5mm. So reasonably consistant with the rears wearing slightly more than the fronts and given the load totally understandable. The measurements showed no great variation across the tyres at any location indicating to me that the wheel alignment and pressures are in the ball park.

New tyres fitted to the front (the 2 spares) and rears refitted to original location. I will do a tyre rotation at some point during the trip and move the original fronts, which are the 2 spares to the rear and the rears will become the spares.

Wear rates indicate toward 40 ~ 45,000km life, which taken at face value does not seem all that good but comparable life to the D697's they replaced and they cost quite a bit less per tyre, if I remember correctly around $100 each

There is no tyre damage to any of the tyres and overall performance has been excellent, noise is still low, handling excellent (not much wet road to consider yet), dirt road and off-road (4WDing) but not much sand evaluation in all that either but the beach work I have done was uneventful.

20,000km update - NT/WA Trip, currently at Broome, lots of bitumen to get here in this additional 10,000km but also post Keep River N/P, Ivanhoe road to Wyndham, Gibb River road to Derby and off shoots, down the Tanami to Wolfe Creek Crater and back and quite a bit of other off sealed road work, so perhaps 2000km in all. Towing the van 95% of the distance accumulated.

Fr L/H - 5.5mm, Fr R/H - 5.5mm (both new at 8mm), Rr L/H 3.8mm, Rr R/H 3.4mm (all measurements are usable tread depth above the wear bars) As previously noted the wear rates seem to point closer to the 40,000km life but I think I will look at it on a cost basis rather than just a km basis.

Same comments as above with respect to overall performance. There is some slight tread damage, especially to the rears (less tread depth so that is to be expected) and the Rr R/H has 0.5mm wear difference across the tread that was not evident before, but basically I have had no tyre issues since leaving, dropped pressures to 175kPa front and 250 kPa rear initially then tried 200kPa rear for dirt road work and 250 Fr & 340 kPa rear for sealed.

Overall, very happy and will certainly consider replacing these with the same if no other option presents.

Peter

Love to see some love sometime. Sounds like a great trip