2007 Lexus Es 350 Brakes Squeel Backing Time Now Had Repaired Over Year Ago

2007 LEXUS ES 350
58,000 MILES
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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.
Apr 3, 2013 at 3:43 AM
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CARADIODOC
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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.
Apr 3, 2013 at 4:15 AM
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