2003 RR V8, 70K miles.

Odd behaviour from gearbox during a 1,500 km round trip... on one occasion (and only one) during our holiday over the last few days, the gearbox seemed to get stuck in 2nd. Switching to manual and forcing it to change to 3rd, it would display 3 for a second or two, then just display 2 again, all the while remaining in 2nd gear.

I stopped the car, put it into park then back into drive, set off again and it was still stuck in 2nd gear.

I stopped the car again, this time swithched the engine off completely, waited a few seconds then restarted. Gearbox was then fine and has been fine ever since (about 500 miles of mixed driving).

Any ideas what might have caused this?

Other than do an oil and filter change, anything else I should be doing in order to stop it going 'pop'?

I had hoped that opting for the V8 rather than the TD6, and choosing something with relatively low mileage, would have exempted me from gearbox troubles......


Thanks in advance for any help or advice you can give me

Best regards

Jerry

i think it might have got slightly over heated and caused an electrical glitch in the gearbox ecu..lets hope that its ok now.. ... - .- -.




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Mine did this as well, only once and with the caravan on the back and was after coming down a hill where I had the foot of the gas and as I picked away again it did exactly this. Mine has 146k on the clock and I did the gearbox oils and filters not that long ago - all seemed fine with no 'bits' in the old oil. Be intereseted in any suggested other things I could check out.

+1 for stans theory... Previously..
Vogue SE TD6
Defender 90 2.4
Defender 110 TD5
Vogue 3.5 EFI

It could possibly have gone into the transmission overheat mode in which it limits the gearbox to 2nd/3rd in order to push more coolant through the trans oil cooler to bring the gearbox oil temp down to within limits.

Get your radiator (bottom 6 cores), Trans Oil cooler and pipes checked out.

Check this thread

http://www.rangerovers.net/forum/6-range-r...post344933

hi Paul, I did wonder if it was in some sort of overheat protetion mode, however the car wasn't working particularly hard at the time - no towing or long steep ascents. There were no warning bongs or messages on the dash either - would you expect this if it went into overheat protection mode? Would it have logged a message of some kind in the ECU which I could get read by diagnostics?

It's also worth noting that a few weeks ago, I towed a horse trailer with heavy horse in it about 700 miles including some long motorway ascents and the gearbox performed flawlessly...

OTOH, I am not sure what conditions create high gearbox oil temperatures, I would guess it would be lots of unlocked torque converter driving. I was on a fairly twisty section of road at the time lots of speeding up and slowing down, perhaps the torque converter never got a chance to lock up??


Cheers,

Jerry