Brakes squeel when backing up

ANONYMOUS

MEMBER
2007 LEXUS ES 350
58,000 MILES

Brakes squeel when backing up. Have for some time now. Had it repaired over a year ago and it went away for about 8 months. Now it's back. Sounds like a "howling dog". Any ideas? Thank you.

Wednesday, April 3rd, 2013 AT 3:43 AM

1 Reply

CARADIODOC

MECHANIC
33,916 POSTS

Depends on the frequency of the squeal. Professionals have a lot of solutions for high frequency squeals like beveling the edges of the pads, lubricating the caliper mounts and pad-to-caliper contact points, and proper surface finish when machining the rotors. For a low frequency drone there is a damper that can be added that is tuned to the vibration to cancel it out. The cause is making parts lighter and lighter for better fuel mileage.