For the Preve Turbo, it appears that there are quite a number of bad batches for the gearbox. After the new gearbox was installed on my car last month, they now suspect the gearbox to be faulty. They are now going to dismantle it for checking before replacing it with another new gearbox. Terrible.

u sure got the replacement gearbox? or they just do some simple overhauling internal parts replacement job, thus some imperfect workmanship causes those problem?

The whole gearbox was replaced and that was confirmed. Since I still hear loud noises during low speed acceleration, they checked the car and found that the gearbox is still faulty. They are going to dismantle the gearbox and inspect it further but as for now, they have put in a report for another new gearbox.

I will update on what is wrong with the car in due time, whether the current gearbox in the car will be replaced with another new gearbox.

Yesterday, I drove at 110km/h for the first time because my PREVE CFE's mileage has just clocked about 1,100km. The "woo-woo" sound from the CVT was very loud. At 100km/h and 120km/h, the "woo-woo" sound was lesser and bearable though.

It seems that this PUNCH CVT is really horrible. Will monitor the situation again before deciding if I'll need to complain to the SC.

Sometimes the sound that we hear may not be accurately represented in words. There are several "noises" when the car is accelerating.

1. Low frequency sound from the engine which is normal with any cars when you step on the pedal to accelerate the car. With the Preve Turbo, the sound is just a bit louder, more diffused.
2. High-pitch sound from the CVT which some people associate with the "aeroplane sound". Some people call it a whistling sound. The sound can be heard when the car is accelerating though is faint and not very loud, since the louder noise from the engine has masked this softer whistling sound from the CVT.
3. The infamous "woo woo sound" from the CVT. This sound varies with cars. The noise is softer in some cars, louder in some other cars. If you hear an abrnormal [U]LOUD[/U] woo woo sound from the car, then it is likely that the transmission (or something else) is faulty.

As everyone's ears are different without any benchmark or comparison purposes, a perceived "loud" woo woo sound may be normal. In other words, the woo woo sound may be prominent and annoying, but it is not exactly loud. It is just that the person chooses to use the word "loud" to describe on the woo woo sound. Having said that, if one strongly feels that the woo woo sound is loud and abnormal, by all means get the car checked at the service centre. If the sound is abnormally loud, then chances are the transmission is defective.

In my case of a defective gearbox, the loud woo woo sound does not happen when the car is moving at moderate speeds, say 80km/h to 120km/h. The woo woo sound only happens at low speed 0 to 40 km/h and when the car is stationary at 0 km/h, and it is loud to the point that you will know that something is really wrong with the car (in my case the gearbox).

Quite accurate.
I do hear a whistling sound after 40 km/h which I thought was from the turbo. It is literally like someone placed a whistle on the front of the car while air glides through the whistle. I find it amusing. And I think to myself, I damn proud I got a Malaysian car. I save a ton of money since my requirements were more towards safety. And then I continue zooming all over the place cause the car is pretty powerful... Puts a smile on my face everytime!

Why is there the "woo-woo" sound when the car is stationary at 0km/h? The CVT gearbox will be at its minimum stress and operation at 0km/h. I don't quite understand your case.

This post has been edited by winners8: Oct 7 2015, 05:42 PM

to sifus....
want to share my situation here....

my cfe is 1.5 year old already....i got this wooing sound....i went to one mechanic and take him for a ride with me....and he told me that the wooing sound is caused by the tyre bearing...then take my car to his workshop and check it....then he told me its not the tyre bearing that cause the wooing sound...he said the wooing sound comes from the tyre itself....because the tyre bulging and swelling a little bit...my car already clocked 48000 km....

is it possible that the wooing sound comes from the tyre....?...
the loudest woo sound is when driving at 65 to 70 km per hour....i tried shifting the gear to Neutral while driving and still can hear the wooo sound.....
does shifting to Neutral while driving makes the gearbox idle (not operating)... ?...

yes it is possible, when the tire become botak or old oledi, it will give out alot of sound, especially a BAX2 which is not known for quietness.

No idea.

If the wooing sound is from the tyre, it should be proportional to the speed of the vehicle. For my case, it gets softer at 120km/h than at 110km/h.

From my experience, it seems that the CVT gearbox is not totally disengaged when set to Neutral. I did try it whilst cruising down a slope at about 20-30km/h and I still see the engine rpm increasing proportionally with the speed of the vehicle, despite being in Neutral gear.

Any offer now for cfe?

Im looking to it too

The primary pulley is always connected. Hence coasting with N and on-wheel balancing, can be hazardous for your gearbox. Poor lubrication but yet the internals are still moving fast.

This post has been edited by mengsuan: Oct 8 2015, 07:02 PM

alang alang might as well wait till early next year


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Eh babi that SA tipu. I asked him if still got 2014 model, he said takde keep push me to buy 2015 model. Said if buy today got 6k disc. Cb...

I was thinking if got 10k disc on suprima i wouldve taken it during the carnival. Dammit

This I agree with you. I have tried to manually move the vehicle with engine OFF and at NEUTRAL gear by slowly rotating the front wheel. I could hear the mechanical "click click" sound during the slow movement, meaning the gearbox is still engaged to the front wheels.

was informed that the stock mainly from those buyers who booked and then canceled their bookings. actually quite number of units available (different models) all over the country (branch, dealer). they stick the list on the white board that day, just beside the main stage.

this one usually very very limited unit ,dont have so much color choice too
some of the stock is from the demo car for some road show/ carnival , so condition may not look like new.
just beware ....

I can still remember the limited Inspira units being sold for 70k.