|
|
|
|
| Author |
|
|
Registered User
Join Date: Jan 2016
Location: Olympia Washington
Posts: 29
|
Vibration under acceleration
2000 Boxster S with 90K. There is some vibration with acceleration that drops off as soon as you let off the power. Revving in neutral is smooth. No vibration when coasting. My local mechanic, not a Porsche expert, was thinking it may be the CV joints but there is no clicking or other noise. Any thoughts?
|
||
03-11-2019, 07:00 PM
|
|
|
Behind the Sun
Join Date: Jul 2014
Location: Tejas
Posts: 1,046
|
Motor mount.
Front one most likely. I would change the 3 of them |
||
|
03-12-2019, 05:35 AM
|
|
|
Registered User
Join Date: Jan 2016
Location: Olympia Washington
Posts: 29
|
The front mount was changed recently. I don't think the others were, but I'll check.
|
||
|
03-12-2019, 09:09 AM
|
|
|
Registered
Join Date: Jun 2018
Posts: 408
|
IMS?
Sent from my SM-N950U using Tapatalk |
||
|
03-12-2019, 10:47 PM
|
|
|
Registered
Join Date: Jan 2004
Location: Pittsford, NY
Posts: 3,700
|
Where do you feel it? Steering wheel? Braking? Seat of your pants? Could be lots of things until you narrow it down a bit.
__________________
Tony G 2000 Boxster S |
||
|
03-13-2019, 03:43 AM
|
|
|
Registered User
Join Date: Jul 2017
Posts: 217
|
My best guess is that it's a bad coil. I had a GM product that did what you describe. turned out to be a bad plug wire.
__________________
Brian Lamberts Tucson AZ |
||
|
03-13-2019, 07:14 AM
|
|
|
|
Registered User
Join Date: Jan 2016
Location: Olympia Washington
Posts: 29
|
It feels like it's coming from the rear. Steering wheel does not shake. No shaking while braking. It feels like a tire or suspension vibration, but only when it's pulling under power. Let off the gas and it stops. Rev the engine while in neutral and there is no vibration. Just when accelerating, or pulling up a hill.
|
||
|
03-13-2019, 08:47 AM
|
|
|
Registered
Join Date: Jan 2004
Location: Pittsford, NY
Posts: 3,700
|
Check your wheel bearings.
__________________
Tony G 2000 Boxster S |
||
|
03-14-2019, 11:02 AM
|
|
|
It'll be legen-waitforit
Join Date: Jan 2002
Location: Calgary, Canada
Posts: 6,997
|
Agreed, check you rear CV boots, wheel bearings with the wheels in the air, check wear on tires, get them checked for balance as well. Good luck
__________________
Bob James 06 Cayman S - Money Penny 18 Macan GTS Gone: 79 911SC, 83 944, 05 Cayenne Turbo, 10 Panamera Turbo |
||
|
03-14-2019, 03:29 PM
|
|
|
Registered User
Join Date: Jan 2016
Location: Olympia Washington
Posts: 29
|
Update: Finally got it back in the shop. Left rear bearing was worn, but the vibration continued until both CV joints/axles were replaced. Also had a torn ball joint boot, and needed alignment. Now it runs great.
|
||
|
06-12-2020, 08:42 AM
|
|
