Too much brake pedal play
Failure of one of the brake circuits
Check brake circuits for brake fluid leakage
For drum brakes only:
Sticking of the device for automatic adjustment of the gap between the shoes and the drum
Remove stuck device.
The brake pedal is pressed far down and springy
Air in the brake system
Remove air from the brake actuator.
Too little brake fluid in expansion tank
Add brake fluid, bleed the brakes.
Formation of steam bubbles in the brake system. Most often after a heavy load on the brakes, for example, when descending
Change the brake fluid, bleed the brakes.
The braking effect is reduced, the brake pedal is depressed to the stop
Leaky pipeline
Tighten the nuts at the joints or replace the pipeline.
Damaged cuff on the main brake cylinder or on the working brake cylinder
Update cuff. In the main brake cylinder, replace the internal parts, if necessary, replace the main cylinder.
For disc brake only:
Damaged rubber piston seal
Move the brake caliper.
Poor braking action despite a lot of effort applied to the pedal
Oily brake pads
Update your overlays.
Wrong or hardened brake lining
Update the pads, use only original pads from the vehicle manufacturer.
Faulty vacuum brake booster, defective booster hose
Check booster and booster hose.
Worn brake pads
Replace pads.
The brake mechanisms of the wheels do not act simultaneously (brakes «pull» one way)
Tire pressure not correct
Check the tire pressure and bring it up to normal.
Uneven tire wear
Replace worn tires.
Oily brake pads
Update your overlays.
Brake linings of different brands are installed on the same bridge
Replace pads, use only original pads from the vehicle manufacturer.
Poor condition of the working surface of the brake pads
Replace pads.
For disc brakes only:
Contaminated caliper cavities
Clean the seating and guiding surfaces of the caliper brake pads.
Corrosion of the wheel brake caliper cylinders
Replace brake caliper.
Uneven brake pad wear
Renew the brake pads on both wheels and make sure the calipers move smoothly.
For drum brakes only:
Heavy stroke of the pistons of the working brake cylinders
Replace working brake cylinders.
Brakes work on their own
Equalizing hole in brake master cylinder clogged
Clean the cylinder and have the internal parts replaced at a workshop.
Drive clearance too small (thrust) and master brake piston
Check clearance.
Heating up the brakes while driving
Brakes work on their own
Clean the brake master cylinder and have its internal parts replaced at a workshop.
Difficulty moving calipers
Lubricate the moving parts of the drum brakes and sort out the calipers (In workshop).
Hard running parking brake cables
Lubricate cable or replace.
For disc brakes only:
Corrosion of the wheel brake caliper cylinders
Replace brake caliper.
For drum brakes only:
Weakening of the brake shoe return springs
Replace springs.
Rattling brakes
Wrong brake pads
Replace pads. Use only original vehicle manufacturer's pads.
For disc brakes only:
The brake disc is covered in places with corrosion
Sand the disc carefully.
Brake disc has lateral runout
Modify the disk or replace.
For drum brakes only:
Brake pads worn out
Replace pads. Use only original vehicle manufacturer's pads.
Brake drum deformation
Replace brake drum.
Brake pads do not move away from the brake disc, the wheels are difficult to turn by hand
For disc brakes only:
Corrosion of the brake cylinders and the brake pads do not move away from the brake disc
Rebuild the caliper, replace if necessary.
For drum brakes only:
Brake shoes do not move away from the drum due to broken or disconnected return springs
Replace springs.
Uneven pad wear
For disc brakes only:
Wrong brake pads
Replace pads. Use only original vehicle manufacturer's pads.
Caliper dirty
Clean the cavity of the caliper.
Wedge caliper
Spread out the guide pins.
Heavy stroke wheel cylinder
Run out the piston (In workshop).
Leakage of the brake system
Check the tightness of the brake system.
Wedge-shaped brake pad wear
For disc brakes only:
Brake disc does not rotate parallel to caliper
Check the contact surface of the caliper.
Caliper corrosion
Eliminate corrosion and contamination.
Squealing in the brakes
Often attributed to atmospheric influences (humidity)
No intervention is required if the brake squeak occurs after a long stop in high humidity, but after the first braking does not occur again.
For disc brakes only:
Wrong brake pads
Replace pads. Use only original vehicle manufacturer's pads.
Brake disc does not rotate parallel to caliper
Check the contact surface of the caliper.
Caliper cavities are dirty
Clean the cavity of the caliper.
For drum brakes only:
Wrong brake pads
Replace pads. Use only original pads from the vehicle manufacturer.
The pad does not fit snugly
Replace pads. Use only original pads from the vehicle manufacturer.
The brake mechanism is dirty
Clean the working brake mechanism.
Weak or broken brake shoe return springs
Replace the brake shoe return springs.
Pulsating brakes
ABS action
Normal, no intervention required.
For disc brakes only:
Brake disc lateral runout or disc thickness tolerance too high
Check runout and disc thickness tolerance. Modify or replace the disk.
Brake disc does not rotate parallel to caliper
Check the contact surface of the caliper.
For drum brakes only:
Loose fit of the wheel disk to the brake drum, because of this the drum was deformed
You can try to swap the wheels. Replace wheel disks if necessary.