Cause | Method of elimination |
Recoil (back thrusts) on the steering wheel | |
| The pump drive belt is loose or worn out | Replace the belt or adjust its tension. |
The steering wheel turns with great effort | |
| The pump drive belt is loose or worn out | Adjust the belt tension. |
| Low fluid level in the filler tank | Add liquid. |
| Low engine idle speed | Adjust the idle speed. |
| Dirty fuel tank filter | Replace the filter. |
| Low operating pressure of the power steering pump | Repair or replace the pump. |
| There is air in the power steering | Check the seals for leaks and remove air. |
Turning the steering wheel in the middle position requires a lot of effort | |
| Power steering pump failure | Check the pump and repair or replace it. |
| Mechanical failure | Check the steering system. |
Turning the steering wheel to one side requires a lot of effort | |
| Pump failure | Check the pump and repair or replace its seals. |
Turning the steering wheel quickly requires a lot of effort | |
| The pump drive belt is loose | Adjust the belt tension. |
| Idle speed too low | Adjust the engine operation. |
| There is air in the hydraulic system | Find the air leak and remove the air. |
| Power steering pump failure | Repair or replace the pump. |
| Mechanical failure | Check the steering system mechanisms. |
Steering is unclear | |
| Low fluid level in the filler tank, fluid leak | Add fluid and fix the leak. |
| There is air in the power steering | Check the seals for leaks and remove air. |
| Steering components are worn out. The steering gear geometry is damaged. | Check the condition of the components and eliminate any faults found. |
| Unsuitability of tires | Check and replace the tires if necessary. |
Noise during operation | |
| Low fluid level in the filler tank | Add fluid, check for leaks. |
| Liquid discharge through the safety valve (whistling sound when steering wheel is at extreme position) | Determine the cause and bleed the air. Check and repair or replace the pump. Check the pump operating pressure. |
Vibration | |
| There is air in the power steering | Determine the cause and remove the air. |
| Mechanical damage or poor condition of the rubber | Identify unsuitable tires and replace them. |
Additional checks for microprocessor-based steering
Cause | Method of elimination |
When driving at high speed, turning the steering wheel requires a lot of effort | |
| Electronic equipment failure | Consult a specialist. |
| Speedometer malfunction | Replace the speedometer or sensor. |
At high speeds the steering wheel turns too easily | |
| Electronic equipment failure | Consult a specialist. |
| Speedometer malfunction. Loose ground connection. | Replace the speedometer or sensor. |
Uneven steering force when turning the steering wheel | |
| Electronic equipment failure | Consult a specialist. |
| Speedometer malfunction | Replace the speedometer or sensor. |