My dads sport is a 55 plate 2.7 HSE. When its cold if you put it in gear drive or reverse and blip the throttle just to move a little bit, there is a strange vibration as the revs come down. Its a bit hard to describe, and for all know it may be normal. But a couple of times I have come to a stop again while the engine is cold, and it shuddered and stopped then shunted forward a bit. I thought some one had hit the back of me, but they hadn't. it did this on 2 separate occasions and never did it again. There are no faults logged so I really don't know what it could be or even if its normal. Any ideas?
Thanks in advance.
mark

Could be the torque converter in the gearbox on its way out....others will be along soon to comment....
How many miles and has it had a gearbox oil flush and change? Visitor from fullfatrr.com
* GONE. 2012 RR Sport HSE SDV6 Orkney Grey. Now being piloted by RRSTDV8
* Current: 2011 4.4 TDV8 Full Fat. Amazing piece of kit.
* Current. 1974 Lightweight 2.25L petrol. Old skool
* GONE. Freelander GS TD4 Manual MY2013. Orkney Grey with privacy, cold and clearview packs, armrests (a must!) and a spoiler.
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* 1949 80" in family since 1975

Check the injector live values

Thanks disco mikey, we have a hawkeye I think I can do it on that, it does seem a little rough on start up for around 20 seconds when cold but fine after that.
DrRob it has 93000 on the clock, dad has had it for 3 years now, he has had the belts done but I think its due a gearbox flush. It doesn't get used much any more unfortunately, as dad broke his hip almost 2 years ago and hasn't driven since. I take it for a week at a time every 6 weeks or so, or when dad wants to go anywhere. His license, is up next year and unfortunately I don't think he will get it back, so I may buy it off him if the problem isn't a big one, as he can get in and out of the sport better than my disco 2
Other than this the car is faultless and drives very smooth, with nice smooth gear changes and its a pleasure to drive.