Help with squealing sound! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Anker · 03-26-2018, 01:58 PM

Worn bearings give a grinding or rumbling noise. Squealing is more likely worn out brake pads. The metal backing on the pads hit the disks and make a horrible squealing sound.

SC-986 · 03-26-2018, 07:10 PM

FWIW - several years ago I developed a high pitched squeal/screech at the rt. rear of my '02 base. Definitely rotational and amplified when driving with a wall or concrete barrier to the right of the car. After checking brakes and finding no issues I replaced the rt. rear hub bearing as a last resort. That took care of the noise.