QUOTE(webboy @ Nov 2 2011, 01:04 AM)
Hi all bros here,
I got some problem with my teana lately. I dont know whether u all have the same problem as mine.
1. First, the car is stop, engine is not running.
2. Then press start button to start the engine.
3. Next, press the accerelate pedal slowly to reach around 30 km/h and then release the pedal.
4. When the speedometer start to go down from 30 to 20 km/h, i can hear some "kuk kuk kuk kukkk" sound.
Any bros here got this kind of problem....?

Webboy, your problem could be the same kind like mine. It is more accurate you look at the rpm meter when the sound came out. In my case, I can clrearly hear the sound when it move from static, ramp up to approx. 1100 to 1500rpm, especially on the climbing slope (mean under high load/stress) however the sound disappeared after the virtual "2nd gear" enggaged. It sounded like the CVT got problem, and really got myself worried a lot. After that, TC sent another car, also 2.5, for me to verify at the same place I always find the noise, apparently it's not sound like mine, as the result they took my car and checked, especially to confirm the gearbox. Few days later, they assured me the problem not coming from CVT but they believed that was the engine knocking sound, so ...they set one of the engine setting from zero to minus one. Hwn I was asked to verify my car again, the sound gone and that's fine till now, further more I feel the engine and CVT work even better than previous.. in the other words kind of better "handshake" between the two. Flankly speaking, I don't enjoy the way this CVT work especially at low rpm and town driving, which suppose to produce smoother movement and seamless power transmission but in actual fact not thru all the range of rpm, in my gut feeling the software for this CVT could be further improved, indeed the whole CVT precision is governed by the SOFTWARE design. Hope TC will look into this, provide us better CVT.
For my car, I also encounbtered a number of case of irritation noise, however TC fixed all for me, thanks to the field service guys but the factory really need to look at the wires dressing method..happened in my case.