TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BR/Brake System3 / 31
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TROUBLESHOOTING (Cont'd) — MK2 Supra Brake System, page 3
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TROUBLESHOOTING (Cont'd) Problem | Possible cause | Remedy | Page Hard pedal but brakes inefficient | Oil or grease on pads | Check for cause/replace pads | BR-14,20 | Brake pads distorted | Replace brake pads | BR-14,20 | Piston frozen in caliper | Repair caliper | BR-16,22 | Brake booster faulty | Repair booster | BR-12 | Vacuum leaks | Repair as necessary | | Brake line restricted | Repair as necessary | Snapping or clicking noise when brakes are applied | Drum brakes in 3 places—brake shoes binding at backing plate ledges | Lubricate | BR-28 | Drum brakes in 3 places—backing plate ledges worn | Replace and lubricate ledges | BR-28 | Drum brakes—loose or missing hold-down spring | Replace | BR-26 | Disc brakes—rust on front edge of inboard shoes | Inspect, lubricate, replace if necessary | BR-26 | Disc brakes—loose or missing anti-rattle spring | Replace | BR-14,20 | Disc brakes—loose installation bolt | Tighten | BR-14,20 | Disc brakes—wear on slide bushing | Replace | BR-14,20 Scraping or grinding noise when brakes are applied | Worn brake linings | Replace, Refinish rotors if heavily scored | BR-14,20 | Caliper to wheel or rotor interference | Replace as required | BR-14,20 | Dust cover to rotor interference | Correct or replace | BR-14,20 | Other brake system components: Warped or bent brake backing plate or splash shield, cracked rotors | Inspect or service | BR-14,20 | Tires rubbing against chassis and body | Inspect or service |