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ryder_78
V8 Member
Malaysia
1033 Posts |
 Posted - 16/11/2008 : 5:09:19 PM
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May I ask if any Sylphy(or Latio) owners have experienced any wind noise when driving at speeds of 120km/h and above? I find the wind noise that sounds like "pheeeee" to be quite evident at a cruising speed of 120km/h and gets louder with higher speed levels. I suspect the wind noise intrudes into the cabin through the side windscreens.
I am guessing the excellent sound insulation and NVH of the Sylphy from the engine and road have caused the wind noise to be more apparent at higher speed levels.
Is this wind noise normal for a new vehicle, and have anyone experienced this phenomenon? It is little unfortunate that the sound insulation of the Sylphy from wind noise and passing traffic is lacking. If this is not prevalent in the car believe it or not the NVH of the Sylphy is on par with the new Mercedes Benz E class.
Any advice would be appreciated. |
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jaysubra
4-cylinder Member
Malaysia
237 Posts |
Posted - 19/11/2008 : 6:38:38 PM
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Ryder,
My Latio also has wind noise when driven above 120km/hour. According to 'Technical Expert' at Section 13 SC, IT IS NORMAL for Latio.
I have learned to live with it the same way I am forced to accept the 'floating' sensation when driven fast....not necessarily happy with it as my old Waja and Wifey's Yaris has no wind noise.
[Sorry folks for always comparing with Waja & Yaris, but it is the car that I own (Yaris) and owned (Waja)] |
MINI Classic, is what I want |
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Chips
Administrator
Malaysia
21992 Posts |
Posted - 19/11/2008 : 6:50:35 PM
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quote:
Originally posted by ryder_78
I am guessing the excellent sound insulation and NVH of the Sylphy from the engine and road have caused the wind noise to be more apparent at higher speed levels.
That is one of the consequences of today's cars which have lower mechanical NVH that you hear sounds which may have been masked before.
Wind noise can be a design flaw or can also be due to improper sealing of the door and window seals. The faster the car travels, the greater the airflow rushing past the body and therefore noise will be generated. If it's a design flaw, then it's turbulence causing the noise which would usually sound more like rushing water. If it is more of a higher pitch sound like 'wheee', then it could be air forcing its way through an improperly seated seal. |
Chips |
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toolkit21
4-cylinder Member
Malaysia
102 Posts |
Posted - 19/11/2008 : 6:51:29 PM
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ryder78, unfortunately the only "pheee" sound i have is from the air-cond. at 120km/hr there's not so much wind noise, nor were there tyre noise from the road.
perhaps like you said, NVH is excellent so much so that small intruding sound is quite 'loud' to our ears.
. |
Sylphy Forum Malaysia
http://z10.invisionfree.com/SylphyForumMalaysia/index.php?act=idx |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 19/11/2008 : 10:18:37 PM
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Thanks for all responses. The noise doesn't sound like rushing water but a high pitch "wheeee" that will go louder at higher speed levels. This sound will be apparent somewhere at 120km/h(very faint) and will be quite noticeable at higher speeds.
Jaysubra, may I know who is the "technical expert" that said the wind noise is normal in Latio vehicles? Does this apply to the Sylphy as well?
Toolkit21, it's funny that the "pheeee" sound comes from your air-cond and not from the windscreens. Are you sure? Did you off the air-conditioner to verify the source of the "pheee" sound? Maybe the "pheee" sound we are hearing from our cars come from the same source, either from the air-cond or the windscreens. I thought this is a small matter but I'll find out later and see if this can be fixed in my next service. The cabin inside the Sylphy is too quiet and every single sound can be heard. |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 21/11/2008 : 5:30:22 PM
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Last attempt to seek advice from any forummers who have experienced this wind noise in their vehicles.
I am trying to get the senior technical guy in TCEAS Mr. Chong this whole week but cannot get him through. According to Doris of marketing department, she did encounter a case when a Sentra owner complained about the wind noise from the windscreens. SHe said it was rectified but through many times of visits to the service center. I am not sure what was done to the car to address this wind noise issue. I will try to call Chong next week to get his opinion on this matter but would appreciate if anybody who have successfully addressed this wind noise issue in the service center can advise. I don't want the guys to mess up the rubber seals or some other parts of the car by poking here and there and finally say, "We can't find what is the cause of the wind noise. I think this is normal for the car to exhibit this trait." |
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ViceCity
4-cylinder Member
Malaysia
62 Posts |
Posted - 22/11/2008 : 09:52:53 AM
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| could it be the CVT belt whining sound? |
ViceCity |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 22/11/2008 : 10:10:42 AM
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| Thanks for the thought. I don't know if it's the CVT belt sound but if it is the sound should exist at all speed levels and not starting at 120km/h onwards. That's the reason I suspect it has got something to do with the wind with higher speed levels. I may be wrong. Does your Mitsubishi Lancer exhibit this "defect"? Anyway I guess any sort of wind noise will be killed off by the pure growl of the MIVEC engine sound. |
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HotBrakes
V8 Member
Malaysia
905 Posts |
Posted - 22/11/2008 : 10:56:28 AM
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IMHO. Not a solution but trying to find out where the "phee" sound comes from:
1. spray the rubber seals around the the doors and window seals with a "silicon lube".
2. check the air-vent "recirculate" or "open".
3. close the wing mirror.
4. live with the noise  |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 22/11/2008 : 11:22:58 AM
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Thanks for the tips.
1. spray the rubber seals around the the doors and window seals with a "silicon lube".
Not too sure about this but will try this only at the last resort.
2. check the air-vent "recirculate" or "open".
Air-vent settings is in "Recirculate" so this is not an issue.
3. close the wing mirror.
Good idea, will try this when there is opportunity but this will not be a long-term solution as it is dangerous to drive with the wing mirror closed(if the wind noise is proven due to this).
4. live with the noise
In fact, the noise will not be heard if I switch on the CD player and listen to music at moderate volume levels. I'm only curious where is the sound coming from, and whether it can be rectified.
Anyway I will get the service center to check on this during my next scheduled service.
Thanks for all opinions. |
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noname78
V8 Member
Malaysia
1195 Posts |
Posted - 22/11/2008 : 12:40:31 PM
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there are many possible where the wind sound generated.
like Latio. some of the member facing is from the rubber (triangle) on the front bonnet - on the corner between the bonnet and windscreen. if didnt paste properly, will have a sharp wind sound coming from there.
2. the wind sound can be generate from the front tyre compartment - where the wind will go into the inner front door, thus will create some sound. i have cover it using sound insulation.
3. check the rubber lining around the door frame. sometimes can be generate from there.
4. advise from technician which made me laugh. he said latio is too quite, thus little bit sound you can hear clearly. *what a excuse* |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 22/11/2008 : 4:46:27 PM
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Thanks for chiming in. Did you figure out the source of the wind noise yourself or the technician in the service center point them out? Anyway I still have to get the technician at the service center to check it out as I cannot possibly rectify it myself even though I knew where the source of the sound is coming from. At least now I know the possible places where the wind noise can be generated.
By the way, at what speed did the wind noise start to occur in the Latio? If you can hear the wind noise in your Latio at high speed levels, I presume the sound insulation of the engine bay in the Latio must be equally impressive as well. There is no wind noise in my old Proton Waja 1.6 even at speeds of up to 180km/h except for the loud engine noise that sounds like it's going to blow up or something. I am guessing the loud engine sound in the Proton Waja has killed the soft "pheeee" wind noise, if there is any. |
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jaysubra
4-cylinder Member
Malaysia
237 Posts |
Posted - 22/11/2008 : 6:21:27 PM
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Ryder,
I miss my Waja.....with all the complaints on power window, door handle etc, it performed simply well with good road holding, power and no wind noise / floating sensation at above 12okm/h |
MINI Classic, is what I want |
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noname78
V8 Member
Malaysia
1195 Posts |
Posted - 22/11/2008 : 9:14:09 PM
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honestly speaking, i can hear the wind sound after 80 or 90km/h. is also depend to the wind direction where it hitting or against your car.
if you follow the wind flow, e.g. like if wind blow from east to west and you driving from east to west, then you only will hear it after 110km/h (tested it before). but if against it, 80 or 90km/h already hear it.
i didnt bother it much coz already immune. |
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ViceCity
4-cylinder Member
Malaysia
62 Posts |
Posted - 22/11/2008 : 11:51:37 PM
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quote:
Originally posted by ryder_78
Thanks for the thought. I don't know if it's the CVT belt sound but if it is the sound should exist at all speed levels and not starting at 120km/h onwards. That's the reason I suspect it has got something to do with the wind with higher speed levels. I may be wrong. Does your Mitsubishi Lancer exhibit this "defect"? Anyway I guess any sort of wind noise will be killed off by the pure growl of the MIVEC engine sound.
Hi Ryder,
Just came back from SP. fewwwww.
No, lancer dont exibit this noise. Thank goodness. But old honda city CVT yes. Above 100km/h sound like wpheeeeeeeeeeeeeeeeeeeeeeeeee.
For the lancer, even above 140 I dont really hear much wind noise.
Is not a defect though, is as per design for the city CVT. |
ViceCity |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 23/11/2008 : 4:30:48 PM
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quote:
Originally posted by jaysubra
Ryder,
I miss my Waja.....with all the complaints on power window, door handle etc, it performed simply well with good road holding, power and no wind noise / floating sensation at above 12okm/h
I concur with your thoughts on the Proton Waja. Although catered for different segment, it doesn't exhibit any "pheeeeee" sound at higher speed levels and has better stability and handling. Acceleration and power lost to Sylphy since it's 1.6 only. Anyway in terms of luxury and comfort there is no comparison -the Sylphy comes up tops. At RM60k the Waja is very solidly built and good value, in my opinion better than the over-rated Vios and City costing RM15k-RM20k more. In fact I'm waiting for the Waja replacement due in 2010 and see how it would have evolved. |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 23/11/2008 : 4:39:24 PM
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| Hi ViceCity, it seems like you've blasted the highways from Sungai Petani with your Lancer. Anyway getting back to some serious talk, I don't know whether it's a good or bad thing if it's proven that the "pheeeeee" sound is due to the CVT in the Sylphy. Good since I would know windscreen or air-conditioner are not contributing to this phenomenon and as such, no rectification required on these areas. Bad since this inherent sound from the CVT may not be able to be eliminated, and most drivers with sensitive hearing(I use this term as my ears are more sensitive towards any sound compared to others) who often drive above 120km/h will hear this sound. It's good the Lancer doesn't exhibit this trait being a CVT design as well. However, I 'm curious as some Latio owners have this "pheeeee" issue as well, and the car is not a CVT. |
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Elmann Shamel
V8 Member
Malaysia
735 Posts |
Posted - 30/11/2008 : 3:08:49 PM
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quote:
Originally posted by jaysubra
Ryder,
I miss my Waja.....with all the complaints on power window, door handle etc, it performed simply well with good road holding, power and no wind noise / floating sensation at above 12okm/h
I'm not missed my Waja as my previous car was Kelisa, and Kelisa NVH nowhere comparable to my wife Livina 1.8. BUT, it's nothing than embarassment when my friend with us and complaint: your Livina NVH worse than my Waja.
As a man without technical background, l'm not surprise as Nissan Livina not equipped with adequate rubber padding around the door panels unlike those found in old Jazz, new Navara, or even same sibling Latio and gaps in B-pillar even bigger and exposed it body paint/B-pillar.
THUS, easier for WIND to get in PLUS tires noise. After numerous complaint and finally fixed at Kuantan TCEAS, it only can last for approximately 1 good hour! Last Thursday after paid a visit to Puchong TCEAS, the technician Wong able to fix rattling door sound and not admit that the inconsistent gaps between Livinas was a build quality problem and rather assumed them as standard [wonder the (SUB)standard already evolved to STANDARD].
Noticed that Nissan Livina's design was so terrible and penny wise pound foolish- they seemed to save some pennies when omitted rubber padding around doors-panels BUT made buyers live with unwanted wind intrusion that annoying and very much irritating.
HOPEFULLY third party can produce rubber parts and sell to Livina buyers. |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 01/12/2008 : 7:52:39 PM
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Elmann Shamel, from your post it seems that the rattling door sound of your Grand Livina is fixed but the wind noise is still there. From what I was told by the technical person in the TCEAS HQ, the wind noise can be fixed but it depends on where the source of the wind is coming from. This requires the technician to check the car thoroughly. According to him, there is a special device used to check if wind is seeping through the rubber seals, sounds interesting.
Anyway I will see if I have time to send in my car for check-up within this month or so. The last two Saturdays have been fully booked. |
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ck0112
1-cylinder Member
Malaysia
8 Posts |
Posted - 10/12/2008 : 01:46:46 AM
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Hi, i am not a sylphy onwer but my newly bought hyundai elantra also produce this "pheeeeee" sound something like whistle sound from driver side when i drive at 110km/h and if u press and go faster let say 130-140km/h the noise is gone..just nice around 110km/h +/- then the noise will appear..very irritating and somemore i did SP for my car sound the sound more obvious..
sent the hyundai SC and they cant do anything about it and they change the new rubber seal for me (driver side) but the noise still there 
PS: my old waja dont have this kind of noise even my little sis kelisa also dont have it when cruising at this speed beside the engine screaming sound..strange!!! |
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ryder_78
V8 Member
Malaysia
1033 Posts |
Posted - 12/12/2008 : 2:23:16 PM
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| Yesterday I managed to tried 130km/h on the federal highway and surprisingly there is no more wind sound. I need to verify this again by end of this month when I have the opportunity to go above 150km/h on my trip to Ipoh using the North-South highway. |
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Topic |
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Is Wind Noise Above 120km/h Normal In New Cars?
