376926 - S35 NOISE FROM THE POWER ASSISTED STEERING IN THE END OF TRAVEL POSITION

Whilst the steering is operated there is a noise when it reaches the end of travel position.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Visually inspect that the level of the power assisted steering in the reservoir is correct; conduct a test steering completely and then releasing the steering wheel	Move on to Step	1. Level too low	1. Restore the correct level; if there are leaks, eliminate them
			2. The noise increases towards the end of travel position and with the engine speed	Move on to Step
			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	POWER ASSISTED STEERING FLUID QUALITY CHECK	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	Emulsified fluid	Eliminate any air penetraion through the power assisted steering system pipes
2	POWER ASSISTED STEERING PIPES CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for constrictions in the system flexible and rigid pipes	Move on to Step	Pipes faulty	Replace the damaged parts, replacing all the seals
3	POWER ASSISTED STEERING PUMP CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the power assisted steering pump is working properly	Move on to Step	Power assisted steering pump malfunction	Replace the power assisted steering pump    See in Op. 4130B20 POWER ASSISTED STEERING PUMP - R.R.
4	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present