ovalandrover
Well-Known Member
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- 1,603
ever since I have had this car (3 years and 60 000 miles )I have had an intermittent fault and that is when the car is going downhill with no throttle it kicks out of gear and stalls beeps and shows gearbox fault on dash. just recently it has got more frequent and also after about 2 hrs running while cruising and braking it beeps and then I lose the lock up in 4 gear. stop and restart it ok for a while.
Yesterday when going down hillon a rough road in Mongolia it stalled as it had done before but when I restarted this time the gear change pattern had changed and it would not change from first to second below 3500 rpm and from second to third below 3750 rpm .
I thought I had lost 4 th gear as I was on a jeep track and could not go over 40 mph and mostly below 25 mph.
up changes
1st to 2nd 35mph
2nd to 3rd 48mph
3rd to 4th 70mph
When I got onto a highway i had to get up to 70 mph which is about 3700 rpm before it would go into 4th and T/C lock up.
The down change are high as well .
4th to 3rd 60mph
3rd to 2nd 48mph
2nd to 1st 30mph
I checked oil level best i could on the track and it seemed OK if a bit overfull which it was not when it was checked 10000 miles ago.
Tomorrow I will drop the sump and clean out the valve block and check for debris in the sump and then decide what to do.
I have a Nanacom and it does not register any faults on the gearbox either stationary or going But what it does do is most of the time when i try to read setting or inputs is lock up or go back to Nanacom start up screen and not give any readings at all. so if I cant find any sticky valves or other faults I will try to find the LR dealer and get it on test book.
I have read Rave and there is a speed sensor in the valve block but it seems it is for sending information to diagnostic and does not do anything else.
Any one who has any knowledge of these boxes and has come across similar faults I would much appreciate any input as to what is wrong.
Thank You
Yesterday when going down hillon a rough road in Mongolia it stalled as it had done before but when I restarted this time the gear change pattern had changed and it would not change from first to second below 3500 rpm and from second to third below 3750 rpm .
I thought I had lost 4 th gear as I was on a jeep track and could not go over 40 mph and mostly below 25 mph.
up changes
1st to 2nd 35mph
2nd to 3rd 48mph
3rd to 4th 70mph
When I got onto a highway i had to get up to 70 mph which is about 3700 rpm before it would go into 4th and T/C lock up.
The down change are high as well .
4th to 3rd 60mph
3rd to 2nd 48mph
2nd to 1st 30mph
I checked oil level best i could on the track and it seemed OK if a bit overfull which it was not when it was checked 10000 miles ago.
Tomorrow I will drop the sump and clean out the valve block and check for debris in the sump and then decide what to do.
I have a Nanacom and it does not register any faults on the gearbox either stationary or going But what it does do is most of the time when i try to read setting or inputs is lock up or go back to Nanacom start up screen and not give any readings at all. so if I cant find any sticky valves or other faults I will try to find the LR dealer and get it on test book.
I have read Rave and there is a speed sensor in the valve block but it seems it is for sending information to diagnostic and does not do anything else.
Any one who has any knowledge of these boxes and has come across similar faults I would much appreciate any input as to what is wrong.
Thank You