Advertise on fullfatrr.com »

Home > Maintenance & Mods (L322) > What exactly is the ‘hummmm’ from the gearbox?
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
Lenb



Member Since: 03 Sep 2014
Location: Leicester
Posts: 132

England 2004 Range Rover Vogue 4.4 V8 Adriatic Blue
What exactly is the ‘hummmm’ from the gearbox?

20,000 Miles ago I had the hummm & cattle grid problem with my gearbox that was made worse by a useless ‘gearbox specialist’ who insisted that his use Dexron 3 when doing it for me was fine. After lots of arguments i bought 20 litres of the correct specified Mobil LT71141 and had repeated changes of oil to get it all out and correct in - the result being that I have had 20,000 Miles of trouble free motoring. However the low ‘hummmm’ has now returned so I am trying to decide wether to just do the ATF again, or if I need to do more with the gearbox. Is it just the torque converter, or is it more? What exactly is causing the ‘hummmm’? The RR is now on 47,500 Miles. Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Post #466315 28th Jan 2018 9:52am
View user's profile Send private message View poster's gallery Reply with quote
RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 908

United Kingdom 

Did you really mean 47,500 miles? That’s incredibly low mileage and I wouldn’t have expected the torque converter lock-up clutch friction plate to have worn sufficiently to be generating the problem at that mileage.

You could try a tube of Instant Shudder Fixx to prove to yourself that this was the cause, just as a temporary measure, but a replacement converter is the only long-term solution if it’s a worn LUC causing the problem.

Phil

Post #466374 28th Jan 2018 6:25pm
View user's profile Send private message View poster's gallery Reply with quote
Lenb



Member Since: 03 Sep 2014
Location: Leicester
Posts: 132

England 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

Oops! And I read it first before posting! Sorry it’s 147,500 miles!!! Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Post #466375 28th Jan 2018 6:27pm
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 © 2006-2024 Futuranet Ltd & Martin Lewis
fullfatrr.com RSS Feed - All Forums


Switch to Mobile site