{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"BR","section_name":"Brake System","page":4,"pages_in_section":31,"title":"Troubleshooting (Cont'd)","section_header":"Brake System — Troubleshooting","ocr_text":"TROUBLESHOOTING (Cont'd)\n\nProblem | Possible cause | Remedy | Page\n\nSquealing, groaning or chattering noise when brakes are applied\n\nNote: Brake friction materials inherently generate noise and heat in order to dissipate energy. As a result, occasional squeal is normal and is aggravated by severe environmental conditions such as cold, heat, wetness, snow, salt, mud, etc. This occasional squeal is not a functional problem and does not indicate any loss of brake effectiveness\n\nRotors and pads worn or scored | Inspect, service or replace | BR-14,20\nDisc brakes—missing or damaged brake pad anti-squeal shim | Replace | BR-14,20\nDisc brakes—burred or rusted calipers | Clean or deburr | BR-16,22\nDirty, greased, contaminated or glazed linings | Clean or replace | BR-14,20\nImproper lining parts | Inspect for correct usage, replace | BR-14,20\nMal-adjustment of brake pedal or booster push-rod | Inspect and adjust | BR-6,12\nLoose or damaged shoe retaining pins, springs and clips and grooved backing plate ledges | Inspect, service or replace | BR-26\nPad wear and pad wear indicator making contact with the rotor | Replace | BR-14,20\n\nSquealing noise when brakes are not applied\n\nBent or warped backing plate causing interference with drum | Service or replace | BR-26\nImproper machining of drum causing interference with backing plate or shoe | Replace drum | BR-26\nMal-adjustment of brake pedal or booster push-rod | Inspect and adjust | BR-6,12\nPoor return of brake booster or master cylinder | Inspect, service or replace | BR-9,12 14,20\nDisc brake—rusted, stuck | Inspect, lubricate as necessary | BR-14,20\nOther brake system components: Loose or extra parts in brakes | Inspect, service, replace as required | BR-26\nRear drum adjustment too tight causing lining to glaze\nWorn, damaged or insufficiently lubricated wheel bearings\nDrum brakes—weak, damaged or incorrect shoe hold-down springs | | BR-26\nDrum brakes—grooved backing plate ledges | | BR-26\nImproper positioning of pad in caliper | | BR-14,20\nOutside diameter of rotor rubbing caliper housing\nHousing installation of disc brake pad support plate | | BR-14,20\nPad wear and pad wear indicator making contact with the rotor | | BR-14,20","image":"https://tsrm.sasquatchvc.com/images/mk2/BR/BR_004.png","url":"https://tsrm.sasquatchvc.com/mk2/tsrm/BR/4","prev":{"page":3,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/BR/3","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/3"},"next":{"page":5,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/BR/5","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/5"},"section_url":"https://tsrm.sasquatchvc.com/mk2/tsrm/BR","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/1","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/2","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/3","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/4","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/5","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/6","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/7","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/8","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/9","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/10","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/11","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/12","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/13","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/14","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/15","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/16","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/17","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/18","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/19","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/20","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/21","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/22","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/23","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/24","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/25","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/26","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/27","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/28","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/29","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/30","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/BR/31"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}