Porsche 992 vibration at low revs

Porsche 992 vibration at low revs

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Discussion

Docmem

Original Poster:

214 posts

259 months

Friday 17th March 2023
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I got a base 992, picked up new in December, 2023 model. I have done 2700 miles and noticed more than average vibration and groaning noise from the engine when driving slow in normal mode mainly between 1500 - 2000 revs. Is this normal. It does become less noticeable in sports mode. Any fellow 992 owners noticed this too? Is it normal thing in 992s. Thanks for sharing your experience.

bennno

13,849 posts

284 months

Saturday 18th March 2023
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What does your dealer say?

Schuey_911

874 posts

87 months

Saturday 18th March 2023
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Can't say I've noticed this Docmem.

Has it been like this from day one, or something developed over time?

Docmem

Original Poster:

214 posts

259 months

Saturday 18th March 2023
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Noticed since day 1. Not spoken to the dealer yet. Will update but was just checking the fellow owners

Docmem

Original Poster:

214 posts

259 months

Saturday 18th March 2023
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Notice this thread on Rennlist with similar problem. https://rennlist.com/forums/992/1314261-engine-vib...

Schuey_911

874 posts

87 months

Saturday 18th March 2023
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Interesting thread and touching wood I can't say I've noticed this as I'm quite sensitive to sounds and rattles etc. I do get an occasional vibration behind the dash though dependant on road surfaces and I know this is also a common fault on some 992's.

Seems like the problem you're talking about is more common on the base 992 Carrera's, and it might be due to the engine tune if it's rpm related, as the base might be sitting at lower revs in normal driving conditions compared to an S or GTS. But there is the odd C2S and Turbo S owner who has noticed the issue in the Rennlist thread as well, so don't know...

Rob-s5mok

118 posts

115 months

Thursday 25th July 2024
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Apologies for resurrecting a zombie thread but thought I would add to the question in case there was a pattern.

New to me Targa 4S 992, 2022. 5,500 miles. Driving in Normal mode, 8th gear = horrible drone at 1500 rpm, so bad it starts a rattle from the back somewhere. Unfortunately this is 72mph on the motorway speed.

Switch to Sport mode, drops and holds 7th, rpm raises, no drone.

So I can get round it but I can't believe it's just a quirk.

Iceblue

140 posts

46 months

Thursday 1st August 2024
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Docmem said:
I got a base 992, picked up new in December, 2023 model. I have done 2700 miles and noticed more than average vibration and groaning noise from the engine when driving slow in normal mode mainly between 1500 - 2000 revs. Is this normal. It does become less noticeable in sports mode. Any fellow 992 owners noticed this too? Is it normal thing in 992s. Thanks for sharing your experience.
Are you sure its the engine and not something resonating at them revs, exhaust shielding etc

Jeremy-75qq8

1,387 posts

107 months

Friday 2nd August 2024
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Engine mounts. I had it on a brand new car. Porsche found not fix it. Was with them for 5 months. Car rejected.

CallThatMusic

2,848 posts

103 months

Friday 2nd August 2024
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I’ve noticed it ( GTS ), believe it’s because the pdk pushes into higher gear and engine labours till you either accelerate through it or as noted above switch to sport ( engine drops a couple of gears ) and drone disappears….
Could drive it on manual I suppose!

Rob-s5mok

118 posts

115 months

Monday 12th August 2024
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Mine is in with the OPC today - took the tech out who heard it too.

But it's been classified as 'they all do that, Sir'. Something about turbos spooling up.

Tempted to reject the car: it's a small thing but when it happens, it's like nails being dragged across a blackboard to my ears.

500swk

144 posts

78 months

Monday 12th August 2024
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CallThatMusic said:
I’ve noticed it ( GTS ), believe it’s because the pdk pushes into higher gear and engine labours till you either accelerate through it or as noted above switch to sport ( engine drops a couple of gears ) and drone disappears….
Could drive it on manual I suppose!
its this,speed up or go to 7th

hornbaek

3,782 posts

250 months

Monday 12th August 2024
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My GT3 Touring has this droning noise as well. When I switch to Sport it disappears.

Rob-s5mok

118 posts

115 months

Tuesday 13th August 2024
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500swk said:
its this,speed up or go to 7th
If it was a Vauxhall Astra, everyone would be saying how c**p it was. As it's a Porsche, all is forgiven.

Markwhyatt

1 posts

5 months

Thursday 15th May
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I’m having this issue as well (GTS) 2024
Terrible droning at 1500rpm on the motorway in 8th
Gearbox just changes up too soon obviously to acheive economy etc but having come out of a 991.2 gts it just feels horrible.
Also have a terrible grumbling/rattling noise from the back when setting off (seems worse when cold)
Anyone else had that?
Had it in to Opc and they said they all do that!
I can’t believe Porsche would allow a £140k car to sound like that

scrounger73

385 posts

173 months

Friday 16th May
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Just thinking outside the box but does the 991/992 have cylinder deactivation? If so turn off the stop/start and this will turn it off. It makes a terrible drone on the 718s so it's the first thing I do when starting the car.

Edward-90nzn

2 posts

5 months

Friday 16th May
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o bought a lightly used 24 plate 992 S which had that vibration last year - i was also told they all did it. that combined with the tyre drone caused me to sell the car after about 1000 miles. Luckily I hadn't sold my Boxster GTS 4.0 which is in my opinion a more enjoyable car.

Waloob

1 posts

2 months

Wednesday 28th May
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I’ve owned 2 992’s now a C4 which I sold because it had the 1500rpm drone in 8th gear.
I changed it for a C2S and that does it too . I hate it and think it’s incapable just to say it’sa characteristic in a £150k car.
Apparently the Americans have had the issue cured with a different rear engine mount. I hope i can go forward with this rework.

rainmaker2

64 posts

15 months

Wednesday 28th May
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Shame. I’m on a 19 plate 992s and have no such problem and at 34k miles.