{"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":4,"pages_in_section":72,"title":"Troubleshooting (Cont'd)","section_header":"Brake System — Troubleshooting","ocr_text":"TROUBLESHOOTING (Cont'd)\n\nProblem | Possible cause | Remedy | Page\n\nSqueling and squeaking noise when brakes are not applied | Mal-adjustment of brake pedal or booster push rod | Inspect and adjust | BR-5, 21\n\n | Poor return of brake booster or master cylinder | Inspect, repair or replace | BR-9, 20\n\n | (Disc brake) | |\n\n | Rusted or stuck piston | Inspect and lubricate as necessary | BR-26, 34\n\n | Improper positioning of pad in caliper | |\n\n | Rotor rubbing against caliper housing | |\n\n | Improper installation of disc brake pad support plate | | BR-23, 31\n\n | Pad wear and pad wear indicator making contact with the rotor | Replace | BR-23, 31\n\n | (Drum brake) | |\n\n | Weak, damaged or incorrect shoe hold-down springs | |\n\n | Grooved backing plate ledges | |\n\n | Bent or warped backing plate causing interference with drum | Repair or replace |\n\n | Improper machining of drum causing interference with backing plate or shoe | Replace drum |\n\n | Other brake system components: | Inspect, repair or replace as necessary |\n\n | Loose or extra parts in brakes | |\n\n | Rear drum brake adjustment too tight causing lining to glaze | |\n\n | Worn, damaged or insufficiently lubricated wheel bearings | |\n\nGroaning, clicking or rattling noise when brakes are not applied | Stones or foreign material trapped inside wheel covers | Remove foreign material |\n\n | Loose wheel nuts | Tighten to correct torque |\n\n | | Replace if stud holes are elongated |\n\n | Mal-adjustment of brake pedal or booster push rod | Inspect and adjust | BR-5, 21\n\n | Worn, damaged or dry wheel bearings | Inspect and lubricate or replace |\n\n | (Disc brake) | |\n\n | Loose or missing anti-rattle spring or pad support plate or crimping on outer pad | Inspect, repair or replace | BR-23, 31\n\n | Failure of shim | Inspect, replace if necessary | BR-23, 31\n\n | Wear on slide bushing | Inspect, replace if necessary | BR-26, 34\n\n | Loose installation bolt | Inspect, tighten if necessary | BR-26, 34\n\n | Poor return of piston | Inspect, repair or replace | BR-26, 34\n\n | (Drum brake) | |\n\n | Loose or extra parts | Inspect and repair | 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}