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Lancia Ypsilon Factory Service Manual (2003-2011)22 · Fault diagnosis

Lancia
Ypsilon Factory Service Manual (2003-2011)
Fault diagnosis
STEERING – vehicle behaviour
Steering wheel oscillations/ vibrations / whilst driving

22 · Diagnostics

Steering wheel oscillations/ vibrations / whilst driving

Make: Lancia
Model: Ypsilon Factory Service Manual
Year: 2003–2011
Section: STEERING – vehicle behaviour › Steering wheel oscillations/ vibrations / whilst driving

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Fault diagnosisSteering wheel oscillations/ vibrations / whilst driving

STEERING WHEEL OSCILLATIONS/ VIBRATIONS / WHILST DRIVING

1	CHECK ON RIMS AND TYRES	All OK	Problems met	Operation
		Results of the tests
	Check, in order: tyre pressures that the rims are not deformed condition of the tyres	Continue to Step 2	Incorrect tyre pressure	Restore the correct pressure
			Abnormal tyre wear	Replace deformed rims (Op. 4450B10)
			Abnormal tyre wear	Replace deformed rims (Op. 4450B11)
			Abnormal tyre wear	Continue according to the instructions in See table X50 TYRE WEAR
2	CHECK ON VIBRATIONS AT LOW SPEED	All OK	Problems met	Operation
	Testing the vehicle at low speed, check: that there are no steering wheel vibrations that there is no surging of the car	Continue to Step 3	Rims or tyres ovalized	Replace the deformed part (Op. 4450B10)
			Rims or tyres ovalized	Replace the deformed part (Op. 4450B11)
			Rims or tyres ovalized	Replace the ovalized part (Op. 4450B10)
			Rims or tyres ovalized	Replace the ovalized part (Op. 4450B11)
3	CHECK ON VIBRATIONS AT MEDIUM SPEED	All OK	Problems met	Operation
	Testing the vehicle at medium speed (60-80 km/h), check whether there are vibrations on the steering wheel and passenger floor well	Continue to Step 4	Vibrations on steering wheel and floor well	Check that the drive shaft-tripod are in line If the gearbox is out of line, replace it ( Op. 2110A10)
4	CHECK ON VIBRATIONS AT MEDIUM-HIGH SPEED	All OK	Problems met	Operation
	Testing the vehicle at medium-high speed, check whether vibrations can be felt through the steering wheel or calves	Continue to Step 5	Vibrations on the steering wheel: wheels unbalanced	If possible, rebalance the wheels (Op. 4450B40)
			Vibrations under the calves: rear wheels unbalanced	Replace the hubs ( Op. 4450C10)
			Vibrations under the calves: rear wheels unbalanced	Replace the hubs ( Op. 4450D10)
			Vibrations under the calves: rear wheels unbalanced	Balance the rear wheels (Op. 4450B11)
5	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

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Parts & tools for this job Staging For 2003 Lancia Ypsilon

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