16 · Diagnostics

H10 Stiff steering (in both directions)

Make: Alfa Romeo
Model: 156 Factory Service Manual
Year: 1997–2002
Section: Steering – car handling › H10 Stiff steering (in both directions)

‹ Prev H02 Drifting when braking Next › H11 Stiff steering (in one direction only)

Fault diagnosisH10 Stiff steering (in both directions)

H10 Stiff steering (in both directions)

During normal operation of the steering there is a stiffening of the steering when steering to both the right and the left.

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Carry out a test, steering on full lock in various conditions to check whether the steering stiffens in both directions Visually inspect the power assisted steering fluid level in the reservoir	OK	Move onto step 1
		Stiffness in one direction only	Move onto step (see H11)
		Power assisted steering fluid level too low	Restore the correct level, if there are leaks, Move onto step (see X30)
1	TYPE OF FAULT CHECK Carry out a test, steering on full lock in various conditions: ascertain how the fault arises	OK	Stiffness continuous and constant:Move onto step 2
		Stiffness intermittent	Check that the filter inside the reservoir is correctly positioned. If necessary, replace the reservoir Op. 4130B10 : End of diagnosis
		Stiffness only during idling	Check for any restrictions in the system pipes, flexible and rigid. If necessary, replace the damaged parts, replacing all the seals (see Assembly 4130B) End of diagnosis
		Stiffness in end of travel position	Restore the correct wheel geometry (see Assembly 4450A) End of diagnosis
2	STEERING TIE-RODS AND ARMS CHECK Check the condition of the steering tie-rods and arms.	OK	Move onto step 3
		Tie-rods damaged or worn	Replace the tie-rids or balljoints Op. 4110B14 End of diagnosis
		Arms damaged or worn	Replace the steering box Op. 4130A10 End of diagnosis
3	STEERING COLUMN BEARINGS CHECK Check the condition and efficiency of the steering column support bearings	OK	Move onto step 4
3		Bearings worn or damaged	Restore the efficiency of the steering column. If necessary, replace the bearings involved Op. 4110A30 End of diagnosis
4	POWER ASSISTED STEERING PUMP CHECK Check that the power assisted steering pump is working properly	OK	Move onto step 5
		Belt slack	Replace the belt Op. 1092C10 End of diagnosis
		Power assisted steering pump malfunction	Replace the power assisted steering pump Op. 4130B24 End of diagnosis
5	Check that the fault is no longer present	OK	End of diagnosis
5	Check that the fault is no longer present	Fault persists	Incorrect selection of diagnostic procedure

‹ Prev H02 Drifting when braking Next › H11 Stiff steering (in one direction only)

Parts & tools for this job For 1997 Alfa Romeo 156

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