22 · Diagnostics

Steering hardening - when steering in both directions

Make: Lancia
Model: Thesis Factory Service Manual
Year: 2002–2009
Section: STEERING – vehicle behaviour › Steering hardening - when steering in both directions

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Fault diagnosisSteering hardening - when steering in both directions

STEERING HARDENING - WHEN STEERING IN BOTH DIRECTIONS

When the steering is operated normally there is a hardening of the steering action to both the left and the right;

No fault messages regarding the power assisted steering appear.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the tyre inflation pressure is correct Check that the power assisted steering fluid level is correct Check that the power assisted steering belt tension is correct	Move on to Step	1. Tyre inflation pressure not correct	1. Restore the correct pressure
			2. Power assisted steering fluid level too low	2. Restore the correct fluid level: if there are leaks, continue follow the instructions in Table X30
			3. Belt tension not correct	3. Check and, if necessary, replace the belt
1	CHECK ON CONDITION OF STEERING RODS AND BOOTS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the steering rods and boots	Move on to Step	Rods damaged or worn	Replace the rods See in Op. 4110B10 Steering RODS - R.R. on vehicle - Check toe in separately
2	CHECK ON TYPE OF PROBLEM	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Conduct a test steering in various conditions checking that there are no problems.		1. Continuous and constant hardening	Move on to Step
			2. Hardening only during idling	2. Check for constrictions in the (flexible and rigid) system pipes. If necessary, replace the damaged parts, replacing all the seals
			3. Hardening in end of travel position	3. Restore the correct vehicle geometry See in Op. 4450A10 FRONT WHEEL GEOMETRY - Check using optical equipment - Includes front wheel toe-in adjustment if necessary
3	STEERING COLUMN OPERATING CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the steering column rotates correctly after having disconnected it from the steering box	Move on to Step	Steering column rotation faulty	Replace the steering control shaft See in Op. 4110A30 Support with steering control shafts - R.R.
4	STEERING BOX OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the front wheels raised, make sure that the rack travels fully in both directions checking that there is no hardening or excessive clearance.	Move on to Step	Steering box operation faulty	Replace the steering box See in Op. 4130A10 POWER STEERING BOX - R.R.
5	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace the steering box See in Op. 4130A10 POWER STEERING BOX - R.R.

‹ Prev Drift whilst braking Next › Steering too sensitive

Parts & tools for this job For 2002 Lancia Thesis

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