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  #13  
Old 07-04-2012, 02:48 AM
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Re: Vibration on Acceleration

You dont have that file in dolby surround 5.1 do you?
To me it sounds like the aircon pipe vibrating on the firewall.
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  #14  
Old 07-04-2012, 06:18 AM
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Re: Vibration on Acceleration

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Originally Posted by allypally View Post
There have been a few threads about a vibration at idle, which is caused by an aircon pipe vibrating against the firewall. Placing a pad between seems to fix it.
Thanks for the heads up on that. The only rattle I have sounds like resonance of a heat shield when I accelerate hard. The heat shield behind the turbo is indeed a little floppy but there is not much I can do about it. I checked the aircon pipes. They seem to be well clear but I found a couple of black metal tubes associated with the stability control touching the back of the firewall on the left side. I pulled them off a bit and put some split electrical conduit around them just in case.
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  #15  
Old 07-04-2012, 06:30 AM
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Re: Vibration on Acceleration

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Originally Posted by GlennR View Post
Pissed up trombone player???
A perfect description
By the sound of it I'm wondering if there is an obnoxious smell associated with it. If so, it might be coming from one of the human occupants and not the car.
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  #16  
Old 07-04-2012, 05:40 PM
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Re: Vibration on Acceleration

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Originally Posted by BobT View Post
A perfect description
By the sound of it I'm wondering if there is an obnoxious smell associated with it. If so, it might be coming from one of the human occupants and not the car.
Hear what your saying Bob. Did'nt go down well when I asked the wife "is that you??"
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  #17  
Old 09-19-2012, 12:13 PM
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Re: Vibration on Acceleration

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Originally Posted by GlennR View Post
Here's the noise. Might prove useful as a diagnostic for people in the future.....I mean how the F%^& do you put this sound into words? Pissed up trombone player??? I don't know. This noise is VERY loud in the cabin and occurs as the compressor kicks in. The resonance is the trim vibrating(Had to zip the two files due to upload protocol but they are just simple .wav files. Let me know if you can hear them OK).
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  #18  
Old 09-19-2012, 06:01 PM
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Re: Vibration on Acceleration

On a similar note, I was poking around under the dash and noticed the air ducting on the passenger side is quite loose and can rattle. I think it is designed to be loose but it seem to me it could resonate under certain driving conditions. I put some duct tape around the joint just in case.
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  #19  
Old 09-19-2012, 07:04 PM
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Re: Vibration on Acceleration

Did the same when I fitted the aqua LED's to the footwells. The duct sort of just hangs and flops around the exhaust aperture in the footwell panels.
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  #20  
Old 11-04-2012, 04:23 AM
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Re: Vibration on Acceleration

Quote:
Originally Posted by GlennR View Post
Here's the noise. Might prove useful as a diagnostic for people in the future.....I mean how the F%^& do you put this sound into words? Pissed up trombone player??? I don't know. This noise is VERY loud in the cabin and occurs as the compressor kicks in. The resonance is the trim vibrating(Had to zip the two files due to upload protocol but they are just simple .wav files. Let me know if you can hear them OK).
JUst wondering, has this BURPPPPP, now been fixed?? (I have it to)
Cheers B
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  #21  
Old 11-04-2012, 04:54 AM
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Re: Vibration on Acceleration

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Originally Posted by barry smith View Post
JUst wondering, has this BURPPPPP, now been fixed?? (I have it to)
Cheers B
Nope, 5 months on, a new TXV installed three weeks ago and still no improvement. Here's a Youtube I posted. I'm going to take it to another dealer 60km away who have recently fixed one of the Qld forum members car with the same noise.

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  #22  
Old 11-05-2012, 03:32 AM
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Re: Vibration on Acceleration

Quote:
Originally Posted by GlennR View Post
Nope, 5 months on, a new TXV installed three weeks ago and still no improvement. Here's a Youtube I posted. I'm going to take it to another dealer 60km away who have recently fixed one of the Qld forum members car with the same noise.

The video shows the car idling in park. I thought is was doing it only when accelerating between 93-100kph. Has it gotten worse? It certainly sounds like some sort of resonance. Can you determine if there is a constant relationship with the revs or is it with the speed, when the sound occurs? Then try replicating it in each gear by holding it in gear to determine if it happens in all gears or just some but I don't suggest doing 100kph in 1st. Another thing to try, the fuel consumption bar gauge is a good measure of acceleration or rather, load on the engine. You might try to see if the is any constant relationship with that. If you could do all that, it would narrow it down. BTW, do you have roof bars installed?
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  #23  
Old 11-05-2012, 05:12 PM
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Re: Vibration on Acceleration

Hi Bob,
I suppose I have confused this thread a little. I have a vibration through the car when accelerating from about 92km/h upwards through to about 105km/h when under load (slight hill). The A/C in another problem that has been with me since day one and cannot get the local service centre interested in fixing it. What is very interesting, there's a few out there with the same A/C moan. interesting also to see who else might experience the same problem now Summer is here and the AC is under a lot more use.
Take your point on using the fuel economy as a method of determining load on the engine. I'll give that a try and report back. Theres a lot of guys in the US reporting "shudder" about the same speed under load, but they are all in V8's that makes me think transmission/torque converter??
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  #24  
Old 11-05-2012, 11:09 PM
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Re: Vibration on Acceleration

I've got the same issue. A slight vibration from about 90km/h to 105km/h. It appears to be more noticable on a couple of roads and under continuous accelleration from either a standing start or low speed. Definately a drivetrain issue. Haven't bothered to ask the dealer about as yet.
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