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Jupitor 2 Profile
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X-TRAIL FANATIC
 


Date Registered: 01-2009
Location: Newcastle Australia
TOTAL POSTS: 318
Reply | QUOTE
Sudden gear changes


This problem seems to only be happening when it's cold, first thing in the morning, once warmed up seems fine, but it does take longer for the CVT to warm up than the engine.
When I start going up a hill, 60kph, the revs increase as the CVT changes up ratios, before settling at 2500rpm, then half way up the hill the revs suddenly drop to 1250rpm for a second or two causing a sudden slow down in speed, then abruptly jumping back up 2500rpm causing a sudden increase in speed again, and as you can imagine a rather rough ride.
It also happens when accelerating up gentle hills from a standing start at 40kph, sudden drop in revs slow down in speed then sudden increase in revs and off you go.
Wondering if it's related to the "Loss of Power" thread.
40000k service coming up shortly will mention it and see what they say.

Peter.

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Diamond White Series 1 T31 CVT Petrol
X-1111 (c)
Bash Plates
Towbar
Rubber Mats
TomTom GPS
Garmin Etrex 10 for Geo-caching
5/Aug/2010, 12:34 pm Link to this post Send Email PM   Send Private Message
 
cooch t31 Profile
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X-TRAIL HOLIC
 


Date Registered: 06-2008
Location: Blue Mountains, NSW
TOTAL POSTS: 5966
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Re: Sudden gear changes


Hi Peter,
It doesn't sound like a problem to me.
It could be that it can't make up its mind on what gear to use on that gradient of hill.
The oil in the box being thicker first thing in the morning could be adding to its erratic changes.

---
Tony X-891c

HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1

6/Aug/2010, 5:52 am Link to this post Send Private Message
 
Jupitor 2 Profile
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X-TRAIL FANATIC
 


Date Registered: 01-2009
Location: Newcastle Australia
TOTAL POSTS: 318
Reply | QUOTE
Re: Sudden gear changes


Thanks Tony, today it ran fine, held revs all the way up.
Just wait and see what happens.

---
Diamond White Series 1 T31 CVT Petrol
X-1111 (c)
Bash Plates
Towbar
Rubber Mats
TomTom GPS
Garmin Etrex 10 for Geo-caching
6/Aug/2010, 11:15 am Link to this post Send Email PM   Send Private Message
 


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