Crown

Board: Porsche - 911 - 997 Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread


    Passenger Seat Vibration

    Hello,
    Took the 997 out for a nice spirited 180 mile trip through the hills, and for some reason, the car (only 15K now on it) seems to be running a bit "rough" - perfect weather conditions, not too hot or cold. Just had the 2 year service on it about 1 month ago, even though it had not reached 20K miles. One thing that I had not noticed before while sitting at a train crossing was that the passenger seat vibrates like crazy at idle. I mean, it's really moving more than I think it should, so this got me thinking, is it possible I may have worn out engine mount(s) already, even if they were not detected in the 2 year service. I presume, like most modern cars, you cannot visually inspect these...are they filled with gel perhaps?

    Anyone else with a similar experience or do all 997's vibrate like this? I'm thinking of going to the dealership on Monday to sit in some other cars and see if they are similar. Thank you.

    Re: Passenger Seat Vibration

    My car has always had a "choppy" type of idle. The tach needle is stable, but the car shakes a bit randomly at idle. Nothing violent, just "sporty". I've had many people tell me this is normal, and my car performs beautifully, so I'm not worried about it. Others apparently have a calmer idle. Let me know what you find out.

    Peter

    Re: Passenger Seat Vibration

    Mine does it too (but not when someone is sitting in it).

    Gaz

    Re: Passenger Seat Vibration

    Mine does too, as did my 996...

    Re: Passenger Seat Vibration

    Passenger seat vibration is usually an option... I guess you got that one for free. Hope your wife likes it

    Re: Passenger Seat Vibration

    They all do that at idle, even my old 996 (as pointed out in an earlier reply). You will notice that if you turn on the AC and the vibration goes away as this ups the idle by a few revs.

    there is nothing wrong with your car

    Re: Passenger Seat Vibration

    How very interesting - so it's more common than I thought. Thanks everyone for the feedback.

    Great answer Ludikis! I'll have to share that with her.

    I see what you mean about the uptick in the rpms from the A/C or throttle, did that this morning, it does seem to smooth it out a bit...

    Going to make a quick stop at the dealer to see if they notice anything else that might be causing this...if normal...great, if something else comes up, I'll share it with you.

    Re: Passenger Seat Vibration

    Quote:
    Vegas said:
    My car has always had a "choppy" type of idle. The tach needle is stable, but the car shakes a bit randomly at idle. Nothing violent, just "sporty". I've had many people tell me this is normal, and my car performs beautifully, so I'm not worried about it. Others apparently have a calmer idle. Let me know what you find out.

    Peter



    Just a wild guess, but could this be related to the fuel you are using?

    Try to tank up with the best grade of fuel you can get locally and pay particular to whether the engine idle appears to improve.

    Re: Passenger Seat Vibration

    Ditto, vibrates when the car is idle.

    Re: Passenger Seat Vibration

    vibrates at idle with the best Californian fuel (91 octane)

    Re: Passenger Seat Vibration

    Feedback from the dealership:

    The vibration I am seeing in the seats is completely normal per the tech advisor and service manager. We looked at a new 2007 C2S for comparison, no other 2005 models on the lot at the moment, however there is very little vibration in the 2007 model, so maybe it's unique to the year, and they've sorted out the "bug" by now.

    Have always run the highest octane available, either 91 or 93...so, I'm assuming it's a small design issue, maybe all sports cars are just a bit "edgy".

    Thanks.

    Re: Passenger Seat Vibration

    Seat vibration! Now I know why the chicks dig riding in Porsche's so much. And all along I thought it was my charm and good looks that turned them into putty on those long drives.

     
    Edit

    Forum

    Board Subject Last post Rating Views Replies
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 5/15/24 8:44 AM
    art.italy
    810936 1808
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 4/7/24 11:48 AM
    Boxster Coupe GTS
    451272 565
    Porsche Sticky OFFICIAL: Porsche 911 (992) GT3 RS - 2022 3/12/24 8:28 AM
    DJM48
    268632 323
    Porsche Sticky The new Macan: the first all-electric SUV from Porsche 1/30/24 9:18 AM
    RCA
    91502 45
    Porsche Sticky OFFICIAL: Taycan 2024 Facelift 3/15/24 1:23 PM
    CGX car nut
    8321 50
    Porsche The moment I've been waiting for... 2/1/24 7:01 PM
    Pilot
     
     
     
     
     
    889987 1364
    Porsche 992 GT3 7/23/23 7:01 PM
    Grant
    847071 3868
    Porsche GT4RS 4/21/24 11:50 AM
    mcdelaug
    403640 1454
    Porsche Welcome to the new Taycan Forum! 2/10/24 4:43 PM
    nberry
    400123 1526
    Others Tesla 2 the new thread 12/13/23 2:48 PM
    CGX car nut
    387352 2401
    Porsche Donor vehicle for Singer Vehicle Design 7/3/23 12:30 PM
    Porker
    372549 797
    Porsche Red Nipples 991.2 GT3 Touring on tour 5/12/24 6:23 PM
    blueflame
    294950 669
    Porsche Collected my 997 GTS today 10/19/23 7:06 PM
    CGX car nut
     
     
     
     
     
    269121 812
    Lambo Huracán EVO STO 7/30/23 6:59 PM
    mcdelaug
    245080 346
    Lotus Lotus Emira 6/25/23 2:53 PM
    Enmanuel
    239477 101
    Others Corvette C8 10/16/23 3:24 PM
    Enmanuel
    223591 488
    Others Gordon Murray - T.50 11/22/23 10:27 AM
    mcdelaug
    174122 387
    Porsche Back to basics - 996 GT3 RS 6/11/23 5:13 PM
    CGX car nut
    145802 144
    BMW M 2024 BMW M3 CS Official Now 12/29/23 9:04 AM
    RCA
    122347 303
    Motor Sp. 2023 Formula One 12/19/23 5:38 AM
    WhoopsyM
    114292 685
    Porsche 2022 992 Safari Model 3/7/24 4:22 PM
    WhoopsyM
    86687 239
    AMG Mercedes-Benz W124 500E aka Porsche typ 2758 2/23/24 10:03 PM
    blueflame
    76988 297
    Porsche 992 GT3 RS 3/3/24 7:22 PM
    WhoopsyM
    56140 314
    Motor Sp. Porsche 963 5/18/24 9:44 PM
    Wonderbar
    27896 249
    Ferrari Ferrari 296 GTB (830PS, Hybrid V6) 1/21/24 4:29 PM
    GT-Boy
    22538 103
    BMW M 2022 BMW M5 CS 4/8/24 1:43 PM
    Ferdie
    21265 140
    AMG G63 sold out 9/15/23 7:38 PM
    Nico997
    17745 120
    AMG [2022] Mercedes-AMG SL 4/23/24 1:24 PM
    RCA
    15768 225
    Porsche Porsche Mission X Hypercar 12/3/23 8:52 AM
    996FourEss
    11674 63
    Porsche 911 S/T 10/10/23 8:53 AM
    RCA
    11044 55
    118 items found, displaying 1 to 30.