{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"BR","section_name":"Brake System","page":2,"pages_in_section":72,"title":"Precautions","section_header":"Brake System — Precautions, Troubleshooting","ocr_text":"PRECAUTIONS\n\n1. Care must be taken to replace each part properly as it could affect the performance of the brake system and result in a driving hazard. Replace the parts with parts of the same part number or equivalent.\n\n2. It is very important to keep parts and the area clean when repairing the brake system.\n\nTROUBLESHOOTING\n\nProblem | Possible cause | Remedy | Page\n\nLow or spongy pedal | Brake pads worn | Replace pads | BR-23, 31\n | Leak in brake system | Repair leak | \n | Master cylinder faulty | Repair or replace master cylinder | BR-9\n | Air in brake system | Bleed brake system | BR-6\n | Brake cylinder faulty | Repair cylinder | BR-26, 34\n | Piston seal worn or damaged | Repair brake cylinder | BR-26, 34\n\nBrakes drag | Parking brake out of adjustment | Adjust parking brake | BR-45\n | Binding parking brake wire | Repair as necessary | \n | Booster push rod out of adjustment | Adjust push rod | BR-21\n | Tension or return spring faulty | Replace spring | BR-39\n | Brake line restricted | Repair as necessary | \n | Lining cracked or distorted | Replace shoe | BR-39\n | Pad cracked or distorted | Replace pad | BR-23, 31\n | Caliper piston sticking | Repair as necessary | BR-26, 34\n | Master cylinder faulty | Repair or replace master cylinder | BR-9\n\nBrakes pull | Tires improperly inflated | Inflate tires to proper pressure | \n | Oil or grease on shoes or pads | Check for cause. Replace shoes or pads | \n | Brake shoes distorted, lining worn or glazed | Replace brake shoes | BR-39\n | Brake pads distorted, worn or glazed | Replace pads | BR-23, 31\n | Disc out of round | Replace disc | BR-26, 39\n | Tension or return spring faulty | Replace spring | \n | Brake cylinder faulty | Repair cylinder | BR-26, 34\n | Piston frozen in brake cylinder | Repair cylinder | BR-26, 34\n | Caliper pads sticking | Replace pads | BR-23, 31\n\nHard pedal but brakes inefficient | Oil or grease on shoes or pads | Check for cause. Replace shoes or pads | \n | Brake pads distorted, worn or glazed | Replace pads | BR-23, 31\n | Piston frozen in brake cylinder | Repair cylinder | BR-26, 34\n | Brake booster faulty | Repair booster | BR-20\n | Vacuum leaks | Repair as necessary | \n | Brake line restricted | Repair as necessary |","image":"https://tsrm.sasquatchvc.com/images/mk3/BR/BR_002.png","url":"https://tsrm.sasquatchvc.com/mk3/tsrm/BR/2","prev":{"page":1,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/BR/1","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/1"},"next":{"page":3,"url":"https://tsrm.sasquatchvc.com/mk3/tsrm/BR/3","api":"https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/3"},"section_url":"https://tsrm.sasquatchvc.com/mk3/tsrm/BR","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/1","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/2","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/3","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/4","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/5","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/6","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/7","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/8","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/9","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/10","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/11","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/12","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/13","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/14","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/15","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/16","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/17","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/18","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/19","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/20","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/21","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/22","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/23","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/24","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/25","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/26","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/27","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/28","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/29","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/30","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/31","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/32","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/33","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/34","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/35","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/36","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/37","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/38","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/39","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/40","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/41","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/42","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/43","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/44","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/45","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/46","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/47","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/48","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/49","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/50","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/51","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/52","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/53","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/54","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/55","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/56","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/57","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/58","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/59","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/60","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/61","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/62","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/63","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/64","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/65","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/66","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/67","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/68","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/69","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/70","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/71","https://tsrm.sasquatchvc.com/api/pages/mk3/tsrm/BR/72"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}