Troubleshooting
Problem Symptoms Table |
Symptom |
Suspect Area |
Reference |
Lower pedal or spongy pedal |
1. Brake system (Fluid leaks) 2. Brake system (Air in) 3. Piston seals (Worn or damaged) 4. Rear brake shoe clearance(Out of adjustment) 5. Master cylinder (Inoperative) |
repair Air bleeding replace adjust replace |
Brake drag |
1. Brake pedal free play (Minimum) 2. Parking brake lever travel (Out of adjustment) 3. Parking brake wire (Sticking) 4. Pad (Cracked or distorted) 5. Piston (Stuck) 6. Piston (Frozen) 7. Booster system (Vacuum leaks) 8. Master cylinder (Inoperative) |
adjust adjust repair replace replace replace repair replace |
Brake pull |
1. Piston (Sticking) 2. Pad (Oily) 3. Piston (Frozen) 4. Disc (Scored) 5. Pad (Cracked or distorted) |
replace replace replace replace replace |
Hard pedal but brake inefficient |
1. Brake system (Fluid leaks) 2. Brake system (Air in) 3. Pad (Worn) 4. Pad (Cracked or distorted) 5. Rear brake shoe clearance(Out of adjustment) 6. Pad (Oily) 7. Pad (Glazed) 8. Disc (Scored) 9. Booster system (Vacuum leaks) |
repair Air bleeding replace replace adjust replace replace replace repair |
Noise from brake |
1. Pad (Cracked or distorted) 2. Installation bolt (Loosen) 3. Disc (Scored) 4. Sliding pin (Worn) 5. Pad (Dirty) 6. Pad (Glazed) 7. Brake pad shim (Damage) |
replace adjust replace replace clean replace replace |
Brake fades |
1. master cylinder |
replace |
Brake vibration, pulsation |
1. brake booster 2. pedal free play 3. master cylinder 4. caliper 5. master cylinder cap seal 6. damaged brake lines |
replace adjust replace replace replace replace |
Brake chatter |
Brake chatter is usually caused by loose or worn components, or glazed
or burnt linings. Rotors with hard spots can also contribute to brake chatter.
Additional causes of chatter are out-of-tolerance rotors, brake lining not
securely attached to the shoes, loose wheel bearings and contaminated brake
lining. |
|
Dual Clutch System. Description and Operation
Description
The dual clutch is installed within the transmission.
The dual clutch comprises an odd clutch and an even clutch. The odd clutch
transfers and cuts off engine power to the tran ...
1. Crankcase emission control system
The positive crankcase ventilation system is employed to prevent air pollution
caused by blow-by gases being emitted from the crankcase. This system supplies fresh
filtered air to the crankcase th ...
Smooth cornering
Avoid braking or gear changing in corners, especially when roads are wet. Ideally,
corners should always be taken under gentle acceleration. If you follow these suggestions,
tire wear will be he ...