puff of air sound when hitting the brakes or taking foot off brakes and also screeching or grinding noise when turning left

Asked by Oct 18, 2016 at 01:42 AM about the 2002 Acura MDX AWD Touring

Question type: Maintenance & Repair

every time i turn left there's a loud screeching noise like the brakes are on or
something is grinding together also after i take my foot off the brakes there is
a puff of air sound

1 Answer

77,845

Brake pads have what they call "sounders" small metal tabs that when the lining gets too a certain wear point they contact the rotor and make a squealing sound, telling you it is time to check the brakes, the air sound could very well be the booster unit has deleloped a vacuum leak in the shaft seals, if this is ture then you will have to replace the booster, it might be cheaper to replace the complete booster assembly than just the booster, your parts supplier can help you decide what would be the most cost effective.

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