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Zorluk: OrtaBraking Systems

When the brake pedal is applied, a vehicle pulls sharply to the left side of the road. What is the most likely cause of this condition?

  1. A
    Air trapped inside the hydraulic master cylinder
  2. B
    A ruptured diaphragm in the vacuum power booster
  3. A seized caliper piston on the right front wheelCevap
  4. D
    A faulty residual check valve at the master cylinder port

Cevap

A seized caliper piston on the right front wheel
A vehicle pulls toward the side with greater braking torque. When the right front caliper piston is seized and cannot extend, the right brake pads cannot clamp the rotor. Because the left front brake operates normally, the unbalanced frictional force on the left side steers the vehicle leftward.

Adım Adım Çözüm

1
Analyze the reported symptom and its directional nature
The vehicle exhibits a directional pull to the left during braking, indicating unequal braking torque between the left and right wheels.
Uneven frictional drag across an axle creates an unbalanced yaw moment around the vehicle center of gravity.
2
Determine the source of the force imbalance
Because the vehicle steers toward the side generating more stopping force, the left front brake is functioning while the right front brake is failing to apply adequate friction.
A frozen or seized sliding caliper piston on the opposite (right) wheel prevents the brake pads from clamping down firmly on the rotor.
3
Eliminate symmetrical system-wide hydraulic faults
Master cylinder air, power booster faults, and residual valve defects affect pedal feel or total system pressure symmetrically.
System-wide hydraulic components do not introduce asymmetric side-to-side clamping discrepancies on a single wheel.

Anahtar Kavram

Brake Pull and Hydraulic/Mechanical Asymmetry Diagnosis
Tahmini Süre:45s
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Braking Systems

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