986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - High g-force racket

alfasteve · 02-11-2025, 07:30 PM

Hi folks, I have a new issue with my '99 Boxster. I can recreate the issue as follows. If I go to a big dry parking lot and go around in big 360's as the speed and G-forces increase the car will start to have a 'fouling' or interference sound coming from what I think is the rear. If I turn the wheel sharper the sound (severity) immediately increases. So, higher G-forces cause it. I thought it might be a bad CV joint on a rear axle so I replaced the passenger side axle with (hopefully) good used one. No effect at all. It makes the sound turning left or right. I discovered it while driving on my fave twisty road (Angeles Crest Hwy around LA). I haven't a clue what it could be. Wheel bearings feel fine. Car has 102k miles. Manual transmission. Any thoughts?

02-11-2025, 07:30 PM	#1
alfasteve Registered User Join Date: Jan 2024 Location: los angeles Posts: 14	High g-force racket Hi folks, I have a new issue with my '99 Boxster. I can recreate the issue as follows. If I go to a big dry parking lot and go around in big 360's as the speed and G-forces increase the car will start to have a 'fouling' or interference sound coming from what I think is the rear. If I turn the wheel sharper the sound (severity) immediately increases. So, higher G-forces cause it. I thought it might be a bad CV joint on a rear axle so I replaced the passenger side axle with (hopefully) good used one. No effect at all. It makes the sound turning left or right. I discovered it while driving on my fave twisty road (Angeles Crest Hwy around LA). I haven't a clue what it could be. Wheel bearings feel fine. Car has 102k miles. Manual transmission. Any thoughts?