RRSPORT.CO.UK

    Forum   Gallery   Shop   Sponsors
Home > Technical > 4.2 SC. Transmission clunk after fluid and filter change
Post Reply  Down to end
Page 1 of 1
 
Muddy90



Member Since: 09 Jan 2021
Location: Cardiff
Posts: 3

United Kingdom 2006 Range Rover Sport Supercharged Tonga Green
4.2 SC. Transmission clunk after fluid and filter change

Evening all

First post here.

I had the transmission fluid changed on my RRS 4.2 as it was approaching 90k on the clock and I had felt an occasional, very mild, ‘clunk’ when upshifting. I.e once every few weeks.

After the fluid and filter was changed yesterday the gearbox is now clunking more frequently and the clunks are harder / more noticeable. It now clunked 3/4 times on each journey.

I’ve only driven the car twice - once on the drive home from the garage and a short trip the day after. Approx 35 miles in total

Before I call up the garage (who I’ve not used before but was recommended) and call BS on the work they’ve done ....I wanted to see if anyone had any ideas what this might be? Does the new fluid need some time to “settle in”, do I need to drive it a bit more to get rid of the now, more noticeable clunk?

Grateful for any advice / experience which can be shared.

Many thanks.
B

Post #608381 Sat Jan 09 2021 9:25pm
View user's profile Send private message View poster's gallery Reply with quote
shepp



Member Since: 15 Nov 2010
Location: Bingley
Posts: 436

United Kingdom 2006 Range Rover Sport Supercharged Java Black

Welcome Muddy90,
I would check what oil they used. If using an inferior cheap oil it could cause issues.
The 6speed on a 4.2 does get a fair bit of hammer, so changing the oil may have cleared out some gunge that was acting as a buffer.
I've heard a few people have success with Dr tranny, used fairly widely on d3, d4 and rrs
https://www.lrparts.net/lrc1080-lubeguard-...udder.html MY12 RRS HSE
Gone 4.2 supercharged RRS
Gone 90
Gone s2000

Post #608382 Sat Jan 09 2021 10:24pm
View user's profile Send private message View poster's gallery Reply with quote
Muddy90



Member Since: 09 Jan 2021
Location: Cardiff
Posts: 3

United Kingdom 2006 Range Rover Sport Supercharged Tonga Green

Thanks for the welcome

I believe the oil is direct from Land Rover as there was a delay getting the oil from them due to reduced operations.

I've driven it some more - up change clunks seem to have reduced a lot however there were a couple noticeable downshifts when accelerating.

Thanks for the link to the additive, looks like it might be a solution if the problem doesn't go away in the next few weeks... do I just screw off the gear shifter and pour down? Laughing Laughing

Post #608510 Tue Jan 12 2021 6:06pm
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 7351

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

They've reset the gearbox adaptive so the gearbox is now having to re-learn how worn it is. It will improve as the ECU adjusts for the wear.

People think the adaptive gearbox is about the gearbox learning the driver's style but it's more about adjusting itself as internal components wear down e.g. clutches. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #608526 Tue Jan 12 2021 11:29pm
View user's profile Send private message View poster's gallery Reply with quote
Muddy90



Member Since: 09 Jan 2021
Location: Cardiff
Posts: 3

United Kingdom 2006 Range Rover Sport Supercharged Tonga Green

Thanks RRSTDV8 - that sounds more promising. The thought of potential transmission damage had me feeling quite queasy all week!

You all seem like a great bunch, I should have joined this forum sooner! On that note, does anyone know how to fix the front cigarette lighter and a sticky bonnet catch? haha!

Post #608534 Wed Jan 13 2021 9:34am
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 7351

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

I'd drive it gently for 100 miles and hopefully the gearbox will figure itself out and be smooth again. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #608535 Wed Jan 13 2021 9:38am
View user's profile Send private message View poster's gallery Reply with quote
Oldandconfused



Member Since: 18 Jun 2017
Location: Norfolk
Posts: 488

United Kingdom 2010 Range Rover Sport 3.0 TDV6 HSE Zermatt Silver

Hi there, stick around, it's a mine of information Thumbs Up
This might help with your bonnet catch;
https://www.disco3.co.uk/forum/bonnet-catc...ch+service

Post #608562 Wed Jan 13 2021 7:32pm
View user's profile Send private message View poster's gallery Reply with quote
Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 3601

England 2005 Range Rover Sport TDV6 HSE Rimini Red

Cigar lighter not working ?
Probably a blue fuse behind glovebox

Post #608564 Wed Jan 13 2021 8:07pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2005-2021 Futuranet Ltd & Martin Lewis
RRSPORT.CO.UK RSS Feed - All Forums

Switch to Mobile site