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Old 03-01-2018, 06:41 PM
  #91  
LavaGTS
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Originally Posted by Fonzareli View Post
tMy 991.2 engine makes lifter tapping noise when cold started after sitting for few days. It usually taps for 10 to 15 minutes until engine warms up. Do you think this is normal?
GTS?

My GTS does this too and I chalked it up to be "lesser sound deadening". Thought about taking it to the dealer but the car runs perfectly.
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Old 03-17-2018, 09:57 PM
  #92  
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Default 991.2 turbo problems

i have a brand new 2018 c4. Just drove it 4200 miles home. Car is fantastic but does have a problem with the turbo air gate valves not opening fast enough while in the first 20-30 minutes of operation. At 2000-2500rpm when you rapidly accelerate, the car starts to rumble like its hitting a hwy warning strip. After 30 minutes the car behaves flawlessly. I do have a Giac tune...but it appears to be unrelated. Dealer (and nick Murray) confirms there are quite a few cases of this. Anybody else got more lowdown? I am told by my dealer Porsche will replace the turbo air gates under warranty
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Old 03-17-2018, 11:32 PM
  #93  
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Originally Posted by George Kriza View Post
i have a brand new 2018 c4. Just drove it 4200 miles home. Car is fantastic but does have a problem with the turbo air gate valves not opening fast enough while in the first 20-30 minutes of operation. At 2000-2500rpm when you rapidly accelerate, the car starts to rumble like its hitting a hwy warning strip. After 30 minutes the car behaves flawlessly. I do have a Giac tune...but it appears to be unrelated. Dealer (and nick Murray) confirms there are quite a few cases of this. Anybody else got more lowdown? I am told by my dealer Porsche will replace the turbo air gates under warranty
You might consider a service visit to the dealer for your nearly new c4. Nothing like documenting the issue at the time and mileage and what-not to get your place in line for any future warranty recall campaign.
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Old 03-18-2018, 05:41 AM
  #94  
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Good advice.

You drove it 4,200 miles home?! Where do you live?!
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Old 03-18-2018, 08:21 AM
  #95  
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I think my speedometer is broken
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Old 03-18-2018, 08:49 AM
  #96  
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Originally Posted by George Kriza View Post
i have a brand new 2018 c4. Just drove it 4200 miles home. Car is fantastic but does have a problem with the turbo air gate valves not opening fast enough while in the first 20-30 minutes of operation. At 2000-2500rpm when you rapidly accelerate, the car starts to rumble like its hitting a hwy warning strip. After 30 minutes the car behaves flawlessly. I do have a Giac tune...but it appears to be unrelated. Dealer (and nick Murray) confirms there are quite a few cases of this. Anybody else got more lowdown? I am told by my dealer Porsche will replace the turbo air gates under warranty
I have the same car. 2018 C4. No issue like this for me. 7200 miles on her.
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Old 03-18-2018, 11:24 AM
  #97  
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2017 C2S 7MT 6k miles (and counting)... no issues yet.
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Old 03-18-2018, 12:07 PM
  #98  
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2017 C2, delivered Nov 2016, 9500 miles, and all is nearly perfect. I changed out my tweeters, dash trim pieces, added a frunk and hood liner, and no squeaking from my changes. The only issue is with my PCM switching on the music without my intervention, but think it could be related to a bad connection with my iPod. After checking the connections, I haven’t had another issue.
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Old 03-18-2018, 03:10 PM
  #99  
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Had a couple of problems with my previous 991.2 Base (already posted....).

With my new 991.2 Cabrio, I had a failed AC compressor (completely locked) the same day the car was delivered to me. I drove it for 1 hour and had to return to the local dealer for a fix.
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Old 03-18-2018, 06:06 PM
  #100  
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2017 C2S, 12k miles, no issues.
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Old 03-19-2018, 01:00 PM
  #101  
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2017 C2S, 3200miles, no issues at all (tracked 3 times).
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Old 03-19-2018, 09:10 PM
  #102  
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991.2 GTS Targa, 800 miles in about 3 weeks. A/C hasn't worked since day 1. Have a service appointment next week to get it fixed. Baffles me that a brand new car could have a faulty A/C. But everything else has been great and the car puts a big fat smile on my face every day. Luckily it's been pretty cool here in NorCal since I got the car, so the lack of A/C hasn't been too much of an inconvenience.
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Old 03-19-2018, 09:22 PM
  #103  
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Originally Posted by ds2k18 View Post
991.2 GTS Targa, 800 miles in about 3 weeks. A/C hasn't worked since day 1. Have a service appointment next week to get it fixed. Baffles me that a brand new car could have a faulty A/C. But everything else has been great and the car puts a big fat smile on my face every day. Luckily it's been pretty cool here in NorCal since I got the car, so the lack of A/C hasn't been too much of an inconvenience.
Same problem I had with mine. The AC compressor was completely locked. I will see if tomorrow I can post a video that my dealer send showing how the compresoor didnĺt turn. Mybdealer fixed the problem the same day I received my new car. They had to tkae the compresor out from another car that was in the showroom....
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Old 03-20-2018, 02:00 PM
  #104  
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Hey folks. Been shopping for a newer 911, and just doing my homework (combined with applying my own personal desires for a "drivers" car,.. ie M/T)...

Has anyone with a 991.2 GTS had the problem of the turbos "backing off" up at the 6k rev range? ... It is described in this video (at the mark of 10 min, 40 seconds into the video).

I also own a 958 Cayenne Turbo (in addition to our 964T in my avatar), and thus follow those threads as well,... and this issue is reported by many owners over there too (958.2 bi-turbo owners).

My wife & I drove the 2017 991.2 GTS with PDK for 2 full days on the wonderful German roads (twisties & autobahn), and never experienced this turbo "backoff",... so just wondering if it is a intermittent issue with only "some" of the GTS.
And is it only PDK, or has anyone with a M/T experienced this as well?

Below is the link to the youtube video... fast forward to 10min 40sec ...
Thanks,
=Steve

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