1, so that the car on the road conditions on the pavement on the poor driving 10km after parking, with the hand touch shock absorber shell, if not hot enough, that the shock absorber internal resistance, shock absorber does not work.
At this point, the appropriate lubricant can be added, and then the test, if the shell fever, the shock absorber internal lack of oil, should add sufficient oil; otherwise, the shock absorber failure.
2, forcibly press the bumper, and then loosen, if the car has a 2~3 jump, it shows that the shock absorber work well.
3, when the car slow driving and emergency braking, if the car vibration more severe, indicating the problem of shock absorber.
4, remove the shock absorber will be upright, and the lower end of the connection ring sandwiched on the vise, force pull and pressure to reduce the number of times, at this time should be a stable resistance, pull up the resistance should be greater than downward pressure when the resistance, such as resistance instability or no resistance, may be the internal oil shock absorber or valve parts damaged, should be repaired or replacement parts.