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Kal-El



Member Since: 08 Aug 2012
Location: Derbyshire
Posts: 204

United Kingdom 2011 Freelander 2 SD4 XS Auto Stornoway Grey
Strange Auto box behaviour

This occurred a few weeks ago one morning and did it again this morning.

I joined a short slip road to A38 but with only what I would describe as medium pressure on the throttle. Despite this, revs were up at 3k so I deployed command shift and even in 6th at 60 the revs jumped to 3k before eventually setting down. Despite displaying 6th, it was behaving like high revving in 4th.

Any thoughts? (It was cold this morning if that has any say) 60 plate SD4 XS, Stornoway Grey, Arm rest pack

http://www.youtube.com/watch?v=ly--gT1RJdk

Post #172537 21st Feb 2013 12:54 pm
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EYorkshire



Member Since: 18 Nov 2010
Location: (!)
Posts: 4392

I would hazard a guess that what you experienced could be classed as normal if the engine hadn't reached temperature.

The auto box in cold weather and before normal running temperature is reached will not hydraulically 'lock up' in gear like it would when warm, therefore even small throttle openings will see revs rise. Probably in 'Command Shift' like other instances, the ECU will not allow something it deems outside of its parameters.

Was the engine up to temperature ?

Post #172540 21st Feb 2013 1:16 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4642

I believe he wasn't referring to a "hold on gear" longer than usual symptom, but to a "slipping clutch" like symptom.

Slip road -> all wheels spinning AND slipping in the same time with a rotational speed greater then the road speed.

And no, the ESP shouldn't react, as when ALL wheels are slipping, they are ALL spinning with the same speed and therefore there is no speed differential between them.

 

Post #172549 21st Feb 2013 2:37 pm
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EYorkshire



Member Since: 18 Nov 2010
Location: (!)
Posts: 4392

Alex, the english explanation for 'slip road' is a normal road that joins or leaves a dual carriageway or motorway, not slip as in slipping or slippery road Thumbs Up

Have we a misunderstanding here with words or am I reading it wrong Confused

Post #172552 21st Feb 2013 3:10 pm
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Kal-El



Member Since: 08 Aug 2012
Location: Derbyshire
Posts: 204

United Kingdom 2011 Freelander 2 SD4 XS Auto Stornoway Grey

The car hadn't warmed up and it was showing 0C so guessing you are right there EY. Doesn't always do it though. Oh well, as long as it is not a cause for concern, I am happy. Thumbs Up 60 plate SD4 XS, Stornoway Grey, Arm rest pack

http://www.youtube.com/watch?v=ly--gT1RJdk

Post #172575 21st Feb 2013 5:15 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4642

EYorkshire wrote:
Alex, the english explanation for 'slip road' is a normal road that joins or leaves a dual carriageway or motorway, not slip as in slipping or slippery road

Thanks! Thumbs Up

Post #172588 21st Feb 2013 6:40 pm
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Andy131



Member Since: 09 Dec 2009
Location: Manchester
Posts: 2181

United Kingdom 

Mine definitely revs 1000-1500 rpm higher when cold.
Deliberately over revs in an attempt to warm up the engine.
Thats why the fuel consumption rockets when sub zero and short journeys.
Ask Pinks he gets around 20mpg due to short journeys. Tangiers Orange - gone, missing her
Replaced by Ewok what a mistake - now a happy Disco Sport owner

Post #172622 21st Feb 2013 10:38 pm
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