986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Loud high pitched squeal ONLY on deceleration

986judy · 12-18-2014, 05:19 PM

My 2000 Boxster (2.7L) with 93000 miles just developed a loud, high-pitched squeal that ONLY occurs during deceleration (braking or taking foot off accelerator). It stops when the car is at a full stop or is accelerating. This sound does not appear when the car is first started -- it appears after the engine has warmed up or after 8-10 miles of driving. There is no change in the squeal with the HVAC on or off. It feels like the sound is louder on the passenger side. What may be failing?

12-18-2014, 05:19 PM	#1
986judy Registered User Join Date: Dec 2014 Location: Sonoma County, CA Posts: 4	Loud high pitched squeal ONLY on deceleration My 2000 Boxster (2.7L) with 93000 miles just developed a loud, high-pitched squeal that ONLY occurs during deceleration (braking or taking foot off accelerator). It stops when the car is at a full stop or is accelerating. This sound does not appear when the car is first started -- it appears after the engine has warmed up or after 8-10 miles of driving. There is no change in the squeal with the HVAC on or off. It feels like the sound is louder on the passenger side. What may be failing?