What Causes Heavy Steering Wheel When Turning in Place?
1 Answers
Heavy steering wheel when turning in place occurs because rotating the steering wheel places an extreme load on the power steering system, which can easily cause the steering gear to overheat and activate protection mechanisms, resulting in stiff steering. Reasons for heavy steering: Issues with steering fluid, excessively tight meshing clearance between the steering gear pinion and rack, damaged bearings in the steering gear or steering column, power booster failure, severe over-wear of the power steering pump belt leading to low output pressure from the steering gear pump, insufficient power steering fluid, contaminated power steering fluid, low front tire pressure, inaccurate front wheel alignment, malfunction of the speed-sensitive solenoid valve on the steering gear (which controls the power assist level), or faults in the wiring or the solenoid valve itself. Steering system inspection methods: Check the ball joint for smooth rotation in its seat—normal operation should show slight resistance without sticking, but there should be no excessive play. Inspect the tie rod's coordination with the steering gear; if the steering wheel turns significantly while the tires don't move, adjust the tightness of the tie rod ball joint pin or replace the tie rod assembly. Examine the front axle and frame for deformation or cracks—replace if cracks or excessive deformation are found. Check the tie rod for damage and the ball joint seat for spalling or cracks. If the plastic ball seat shows obvious wear, thread damage exceeding 2 threads, or the ball joint pin's tapered neck protrudes 1-2 mm above the tapered hole's upper end, replacement is necessary.
