Noise ' power assisted steering / end of travel
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Noise / vibrations › Noise ' power assisted steering / end of travel
‹ Prev Steering wheel and brake pedal vibrationsNext › Noise ' power assisted steering / with the steering wheel stationary
Fault diagnosisNoise ' power assisted steering / end of travel
NOISE ' POWER ASSISTED STEERING / END OF TRAVEL
Whilst the steering is operated there is a noise when it reaches the end of travel position.
| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
| Visually inspect the level of the power assisted steering fluid in the reservoir. Conduct a test by steering completely to one side and then releasing the steering wheel | Move on to Step 1 | 1. Fluid level too low. | 1. Restore the correct fluid level: if there are leaks, continue follow the instructions in | |
| 2. The noise increases towards the end of travel position and with the engine speed (roar) | 2. Move on to Step 1 | |||
| 3. The noise remains constant (hissing whilst steering, puffing on release) | 3. No intervention is nececssary: the noise is due to the by-pass valve that discharges the excess pressure | |||
| 1 | CHECK ON POWER ASSISTED STEERING FLUID QUALITY | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Visually inspect the power assisted steering fluid in the reservoir. Make sure that there is no emulsified fluid (fluid that is lighter in colour with bubbles) | Move on to Step 2 | Emulsified fluid. | Eliminate any air infiltration from the power assisted steering system pipes | |
| 2 | POWER ASSISTED STEERING PIPES CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check for constrictions in the flexible and rigid system pipes. | Move on to Step 3 | Pipes faulty. | Replace the damaged parts, replacing all the gaskets. See Assembly | |
| 3 | CHECK CORRECT OPERATION OF THE POWER STEERING PUMP | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the power assisted steering pump is working properly | End of diagnosis | Power assisted steering pump malfunction | Replace the power assisted steering pump Op. 4130B24 |
‹ Prev Steering wheel and brake pedal vibrationsNext › Noise ' power assisted steering / with the steering wheel stationary
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