What Causes Unstable Steering in Subject 3 Driving Test?
1 Answers
The reasons for unstable steering in Subject 3 driving test include the following aspects: 1. Excessive meshing clearance in the steering gear transmission pair, excessive clearance or wear in the upper and lower bearings of the steering worm, leading to increased steering wheel play; wear and looseness in the longitudinal and transverse tie rod ball joints, loose fastening nuts; loose spline fit or loose fastening nuts in the steering pitman arm. 2. During vehicle movement, it's impossible to maintain a perfectly straight line due to road surface factors. When noticing body tilt, drivers tend to make excessive steering corrections. 3. Overly nervous drivers focusing excessively on the steering wheel may develop unstable steering control.