Table 14.2. Troubleshooting shock absorbers
Fault | Cause of failure | Troubleshooting |
Shock absorber breakdowns | fender faulty | check auxiliary spring, replace if necessary |
shock absorber wear | replace shock absorber | |
Knocking / noise in the suspension strut | loose shock absorber | fix the shock absorber |
upper shock absorber mount failed | replace upper shock absorber | |
the lower rubber-metal hinge of the shock-absorber is faulty | replace shock absorber | |
the newly installed shock absorber was stored in a horizontal position with the stem retracted | remove the shock absorber and stand at room temperature in an upright position with the stem extended for 24 hours | |
shock absorber wear | replace shock absorber | |
Uneven tread wear | shock absorber wear | replace shock absorber |
Continuous inertial oscillations when driving on rough roads | insufficient shock absorber damping | replace shock absorber |
Rocking of the body when hitting bumps that follow one after another | insufficient shock absorber damping | replace shock absorber |
When accelerating, the front of the car lifts up | insufficient shock absorber damping | replace shock absorber |
The wheels go on «bounce» when leaving on a flat road | insufficient shock absorber damping | replace shock absorber |
Vehicle pulls into adjacent lane when braking | insufficient shock absorber damping | replace shock absorber |
Table 14.3. Troubleshooting rear axle
Fault | Cause of failure | Troubleshooting |
Noise when cornering | wheel bearing failed | replace wheel bearing |
vibrations | wheel imbalance | balance the wheels |
radial, lateral rim runout | check and, if necessary, replace the wheels | |
tire runout | adjust tires, replace if necessary | |
Roar | defective rubber-metal hinge of the rear axle beam | replace rubber mount |
defective rubber-metal hinge for mounting the rear axle gearbox | replace rubber mount | |
defective rubber-metal joint of the transverse suspension arm | replace control arm | |
defective rubber-metal joint of the guide arm | replace guide lever | |
Knock | defective rubber-metal hinge of the rear axle beam | replace rubber mount |
Faulty ball joint in wheel bearing support | replace ball joint | |
Poor driving dynamics or deterioration in directional stability | defective rubber-metal hinge of the rear axle beam | replace rubber mount |
defective rubber-metal / ball joint of the transverse or directing suspension arm | replace transverse or guide arm | |
Faulty ball joint in wheel bearing support | replace ball joint | |
defective rubber-metal joint of the rocker arm | replace rocker arm | |
incorrect rear wheel alignment | measure the parameters of the chassis, if necessary, adjust the angles of the rear wheels | |
Deterioration of controllability when exiting a turn and (or) insufficient longitudinal stability of the rear of the car | defective rubber-metal hinge of the rear axle beam | replace rubber mount |
defective rubber-metal hinge for mounting the rear axle gearbox | replace rubber mount | |
see Possible shock absorber malfunctions | ||
Increased tread wear | incorrect front and/or rear wheel alignment | measure the parameters of the chassis, if necessary, adjust the angles of the rear wheels |