- The red brake warning indicator is always on
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- FILL the brake fluid reservoir to the MAX line.
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- Red brake warning indicator inoperative
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- CHECK the tires for uneven or excessive wear, and correct inflation.
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- CHECK the brake pads for uneven taper or excessive wear. REPAIR as necessary.
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- CHECK the brake discs and the hubs for damage. REPAIR as necessary.
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- Brake pedal goes down fast
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- INSPECT the system for leaks. FILL the brake master cylinder reservoir. BLEED the system.
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- CARRY OUT the Brake Master Cylinder component test in this article.
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- The brake pedal eases down slowly
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- CARRY OUT the Brake Master Cylinder component test in this article.
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- Brake lockup under light brake pedal force
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- CHECK the brake pads for uneven taper or excessive wear. REPAIR as necessary.
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- CHECK the brake components for correct operation. REPAIR as necessary.
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- REPAIR or INSTALL new components as necessary. REFER to PARKING BRAKE in this article.
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- Anti-lock brake control system
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- Excessive/erratic brake pedal travel
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- CARRY OUT the Brake Master Cylinder component test in this article.
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- CHECK the brake pads for excessive wear.
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- CHECK the brake pedal for binding or obstructions. REPAIR as necessary.
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- REPAIR or INSTALL new components as necessary. REFER to PARKING BRAKE in this article.
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- CARRY OUT the Brake Booster component test in this article.
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- CARRY OUT the Brake Master Cylinder component test in this article.
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- Excessive brake pedal effort
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- CARRY OUT the Brake Booster component test in this article.
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- Brake booster check valve
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- CARRY OUT the Check Valve component test in this article.
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- Brake booster manifold vacuum hose
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- REROUTE, REPAIR or INSTALL new components as necessary.
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- Caliper mounting bolts loose
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- Damaged or worn caliper guide pins or retainers
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- CHECK the caliper guide pins and retainers for lubrication and correct operation. LUBRICATE or INSTALL new components as necessary. REFER to BRAKE CALIPER GUIDE PINS in this article.
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- Missing or damaged anti-rattle clips or springs
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- CHECK the brake pads for missing clips or broken springs. INSTALL new components as necessary. REFER to FRONT DISC BRAKE
for front disc brakes or REAR DISC BRAKE
for rear disc brakes.
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- Clicking noise - with brakes applied with anti-lock brake system (ABS)
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- ABS hydraulic control unit
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- Squealing noise - occurs on first (morning) brake application
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- Acceptable condition. Caused by humidity and low brake pad temperature.
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- Squealing noise - a continuous squeal
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- Brake pads or linings worn below minimum thickness
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- INSPECT brake pads for excessive wear, taper wear or uneven wear. VERIFY brake pads are within minimum specifications. REFER to BRAKE PADS in this article.
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- Squealing noise - an intermittent squeal brought on by cold, heat, water, mud or snow
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- Groaning noise - occurs at low speeds with brake lightly applied (creeping)
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- Grinding noise - continuous
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- Brake pads or linings worn below minimum thickness
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- INSPECT the brake pads, brake discs and attaching hardware for damage. VERIFY brake pads are within minimum specifications. REFER to BRAKE PADS in this article.
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- Brake linings contaminated with grease or oil
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- INSPECT the brake pads for contamination. REPAIR or INSTALL new components as necessary. REFER to FRONT DISC BRAKE
for front disc brakes or REAR DISC BRAKE
for rear disc brakes.
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- Vibration when the brakes are applied
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- Brake vibration/shudder - occurs when the brake pedal is released
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- INSPECT the brake pads for premature wear. REPAIR or INSTALL a new caliper as necessary. REFER to FRONT DISC BRAKE
for front disc brakes or REAR DISC BRAKE
for rear disc brakes.
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