Cause |
Elimination |
A. The brakes are squeaking. |
- Resonant noise between the disc and the pads.
- The pads are worn or hardened.
- The brake surfaces of the discs are heavily contaminated, oily or worn.
- The guide of the pad in the caliper is dirty or rusty.
- The piston is blocked in the caliper.
|
- Replace the pads, if necessary, lubricate the back side of the pad bearing plates with noise-reducing paste.
- Replace.
- "Fix" the discs with sandpaper or grind them. Replace worn discs in pairs.
- Clean and sand.
- Make the caliper run better or repair it.
|
B. Braking effect decreases (reduction in efficiency). |
- The pedal travel is normal:
a) The brake pads are oily, burnt or hardened.
b) See A3. - Pedal travel is short:
The brake booster is not working or there is no low pressure in the booster. - The pedal stroke is long:
a) See A5.
b) Failure of the brake circuit. - Worn brake pads.
|
- Replace the pads.
- Check the amplifier; check the low pressure line; check the low pressure valve (clogged?) and replace if necessary.
- Check and replace defective parts.
- Replace the pads.
|
B. Weak braking power when pressing hard on the brake pedal |
- See from A2 to A5.
- See from B1 to B4.
|
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G. Weak brake pedal travel. |
- Air in the brake system.
- When the brakes are overloaded (driving in mountainous areas, having a trailer), steam bubbles form (reduced efficiency).
- The brake master cylinder is not secured correctly.
|
- Check the brake system, bleed it.
- Stop, cool the brakes. Drive and brake carefully, shift to lower gears more often (engine braking).
- Check the fastening.
|
D. The brake pedal can be fully depressed, but there is no braking effect. |
- Failure of the master brake cylinder.
- The brake hose cracked, there was a leak at the connection.
- The brake fluid is old or overheated (formation of steam bubbles).
|
- Replace.
- Replace.
- Replace.
|
E. The pedal travel is too long. |
- Wheel bearing is loose or worn.
- The discs are oval, the pads are inverted.
- Brake fluid is leaking.
|
- Secure, replace if necessary.
- Check the discs and linings, replace if necessary.
- Check the hydraulics of the brake system for leaks and eliminate any deficiencies.
|
G. Low brake fluid level. |
- The discs or linings are worn out.
- Hydraulic leaks.
|
- Check discs or linings, replace if necessary.
- Check hydraulics for leaks and correct any deficiencies.
|
Z. The brakes pull to one side. |
- The discs are defective or the linings are different.
- See A3.
- See A5.
- Incorrect tires or tire pressure.
- Defect in the steering mechanism.
- The shock absorber is worn out.
|
- Check and replace if necessary.
- —
- —
- Check it out; install proper tires; check your tire pressure.
- Check it out.
- Check and replace if necessary.
|
I. The linings are heavily or unevenly worn. |
- The brake discs are rusty or cracked.
- See A5.
|
Check and replace if necessary. |
(The text of the article was copied from the website: FordBook)