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arniev
Newbie


Joined: 22 Aug 2019
Posts: 3



PostPosted: Thu Aug 22, 2019 9:51 am    Post subject: New 992 4S issues Reply with quote

After reading this forum for a while I thought I'd post about a couple of issues I'm having with my 992 Cab 4S.

There is a really irritating noise when you accelerate. It's a like a ticking, whirring noise which is really irritating. I was wondering if it was a faulty injector or something similar. I've got the car booked in with West London on the 10th of September (6 week wait for the appointment) for a recall and for them to have a look but I know how difficult it can be with "strange noises" from the engine bay.

I wondered if it might be something that settles with a bit more mileage but was a bit surprised they don't offer a running in check or something similar.

Also the wind noise once you get to 65-70mph is frankly ridiculous.
 
  
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MJA911
Sepang


Joined: 10 Dec 2013
Posts: 2824
Location: Berkshire

2012 Porsche 991 Carrera

PostPosted: Thu Aug 22, 2019 10:53 am    Post subject: Reply with quote

That doesn't sound too good, not saying that the engine has an issue, but I test drove a 4S coupe and didn't feel the engine noise was annoying at all. The wind noise is disappointing too, compared to a coupe it will let more external sound in of course, but in my experience of having a 997 Cab and a week-long use of a 991 cab (which was much quieter) wind noise wasn't a big problem, being able to hear other traffic or heavy rain were the main differences. In fact in the 991 tyre noise was more intrusive than the hood, easy to forget it was a cab and would have thought the 992 has taken that further still. I would get them to give an opinion on that while it's in.
_________________
991.1 C2, 986 Boxster S
Past pleasures: 997.1 GT3, 997.2 C4S Cab, 993 C2, 997.1 C2S, 996.1 C4
 
  
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arniev
Newbie


Joined: 22 Aug 2019
Posts: 3



PostPosted: Thu Aug 22, 2019 11:03 am    Post subject: Reply with quote

MJA911 wrote:
That doesn't sound too good, not saying that the engine has an issue, but I test drove a 4S coupe and didn't feel the engine noise was annoying at all. The wind noise is disappointing too, compared to a coupe it will let more external sound in of course, but in my experience of having a 997 Cab and a week-long use of a 991 cab (which was much quieter) wind noise wasn't a big problem, being able to hear other traffic or heavy rain were the main differences. In fact in the 991 tyre noise was more intrusive than the hood, easy to forget it was a cab and would have thought the 992 has taken that further still. I would get them to give an opinion on that while it's in.


That is the plan. I'll see what they come back with.

I had a 991.2 Targa which had no wind noise (roof up) for 18 months. It then developed the wind noise and Porsche Brooklands sorted it out. 12 months later the noise came back and they said it was a feature of the Targa cars and they couldn't fix it.
 
  
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PerrinAybara
Newbie


Joined: 02 Jan 2019
Posts: 33



PostPosted: Thu Aug 22, 2019 11:14 am    Post subject: Reply with quote

arniev wrote:
MJA911 wrote:
That doesn't sound too good, not saying that the engine has an issue, but I test drove a 4S coupe and didn't feel the engine noise was annoying at all. The wind noise is disappointing too, compared to a coupe it will let more external sound in of course, but in my experience of having a 997 Cab and a week-long use of a 991 cab (which was much quieter) wind noise wasn't a big problem, being able to hear other traffic or heavy rain were the main differences. In fact in the 991 tyre noise was more intrusive than the hood, easy to forget it was a cab and would have thought the 992 has taken that further still. I would get them to give an opinion on that while it's in.


That is the plan. I'll see what they come back with.

I had a 991.2 Targa which had no wind noise (roof up) for 18 months. It then developed the wind noise and Porsche Brooklands sorted it out. 12 months later the noise came back and they said it was a feature of the Targa cars and they couldn't fix it.
Even with the roof up, the Targa suffers from inevitable excess wind noise?

That doesn't sound right.
 
  
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arniev
Newbie


Joined: 22 Aug 2019
Posts: 3



PostPosted: Tue Sep 10, 2019 9:38 pm    Post subject: Update Reply with quote

So the car is with West London Porsche.
Went for a spin with the mechanic and basically the strange noise is the fuel pump. His explanation is the system is under such high pressure when you put load on the engine. The new fuel pumps make this noise apparently, which is annoying.

Yet to hear anything back about the roof yet.

Further update; roof noise is not the roof but the drivers side wing mirror. At 70mph+ it creates the noise. Apparently similar issues with the Cayenne at some stage.

All in all a bit annoying, would have thought these niggles would have come out in testing.
 
  
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