Symptom
| Causes
|
Excessive brake pedal travel
|
|
Brake pedal travel gradually increases
|
|
Excessive brake pedal effort
|
• | Operator riding the brake pedal. |
|
Excessive braking action
|
|
Brakes slow to respond
|
|
Brakes slow to release
|
|
Brakes drag
|
• | Operator riding the brake pedal. |
|
Uneven braking action (side to side)
|
• | Heat spotted or scored discs. RefeIP Cluster ReplacementIP Cluster
Replacementr to
Brake Rotor Tolerance
. |
• | Incorrect tire pressure. Refer to Tire Inflation Pressure Specifications. |
|
Uneven braking action (front to rear)
|
|
Scraping noise from brakes
|
|
Brakes squeak without application
|
|
Brakes squeak during application
|
|
Binding hydroboost spool valve
| Contaminated power steering fluid. Refer
to
Power Steering System Flushing
in Power Steering Gear and Pump.
|
Brakes chatter (roughness)
|
• | Improper thickness variation. Refer to Brake Rotor Thickness Variation
Check in Disc Brakes, or
Brake Drum Inspection
in Drum Brakes. |
|
Brakes groan at end of stop
|
- Linings damaged by abuse. Refer to
Brake Rotor Thickness Variation Check
in Disc Brakes or
Brake Drum Inspection
in Drum Brakes.
- Loose front suspension attachments. Refer to
Fastener Tightening Specifications
in Front Suspension.
- Out of balance wheel assemblies. Refer to
Tire and Wheel Balancing
in Vibration Diagnosis and Correction.
|
Brake warning lamp ON
|
• | Park brake switch circuit grounded. |
|