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Jackh



Member Since: 28 Oct 2012
Location: cape town
Posts: 7

South Africa 2010 Defender 110 Puma 2.4 CSW Alpine White
puma looses control
hi, many thanks for all the valuable advise and info on your forum. i have a m2010 puma with 140,000km. had the vehicle since it had done 10,000kms. it has spent most of its life off road exploring not only south africa, but also Namibia, Caprivi, Botswana etc.

Other than a few minor issues the vehicle has been fantastic and has recovered many a vehicle in a stuck situation thanks to its TC. Other than being fully equipped for expeditions, it is completely standard, with Goodyear Wrangler AT tyres.

However the other day i had just descended a very slippery, clayey, narrow mountain pass. the vehicle was in HR , 2nd with CDL locked. when without any warning the vehicle spun through 180degrees as if the front left wheel had suddenly found grip through the clay and it decided to take the lead and pull the vehicle around. The vehicle stopped just before hitting the cutting and we proceeded on our way wondering what had just happened. the whole incident from loss of control to being back on the road was probably less than 1 min.

After scouring the web and the various discussions on the PUMA TC i thought that i would ask your readers for suggestions, help and advise. Prior to this experience i have always relied on the gear-crunching-noisy-TC unit getting me home !! jackh
disco 1 - 450,000km retired
puma 2010
Post #604945 26th Feb 2017 1:57pm
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Alien



Member Since: 18 Jan 2015
Location: Bacchus Marsh
Posts: 230

Australia 
Is it possible a front wheel dug into a rut or stopped foward travel against a rock?
If so momentum would have used it as a pivot point.
HR 2nd would not provide as much Engine braking as LR 3rd for a similar speed.
It is possible the ABS had a role to play too if it was fairly slippery and you where at idle. Cheers,
Kyle.
Post #605116 26th Feb 2017 10:38pm
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Jackh



Member Since: 28 Oct 2012
Location: cape town
Posts: 7

South Africa 2010 Defender 110 Puma 2.4 CSW Alpine White
Hi Kylie, thanks for your input. No we did not see or feel any rut or obstacle, also did not hear or feel TC doing its thing. No sign of orange light on dash coming on. My passenger feels that there was a very sudden change in the depth of the very slippery clayey stuff across the whole width of the road with the left hand front wheel hitting this first it would have acted like a brake on that wheel and momentum would have done the rest. jackh
disco 1 - 450,000km retired
puma 2010
Post #605262 27th Feb 2017 2:49pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2591

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
wow, that sounds scary! Shocked

I concur with Alien, LR would probably have prevented this.

I always engage LR on non-tar mountain passes, it just makes it easier and gives me a lot more control should the going get really rough. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #605456 28th Feb 2017 8:00am
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Jackh



Member Since: 28 Oct 2012
Location: cape town
Posts: 7

South Africa 2010 Defender 110 Puma 2.4 CSW Alpine White
Hi Naks, Thanks for the advice - I'm waiting for some good rainfalls so that I can go back and see if i can replicate the incidence - carefully. Will keep the forum advised. jackh
disco 1 - 450,000km retired
puma 2010
Post #605465 28th Feb 2017 9:07am
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2591

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
jislaaik, after a brown-underpants moment, I'm not sure I would have the balls to replicate that Rolling with laughter --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #605466 28th Feb 2017 9:14am
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