22 · Diagnostics

Clutch vibrating or jerking

Make: Lancia
Model: Ypsilon Factory Service Manual
Year: 2003–2011
Section: Clutch › Clutch vibrating or jerking

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Fault diagnosisClutch vibrating or jerking

CLUTCH VIBRATING OR JERKING

1.2 16v

The clutch pedal vibrates and 'jerks'. When released, the vehicle does not start smoothly, but jerks or vibrates

First check:

engine idle speed

1	CHECK ON CLUTCH PEDAL	All OK	Problems met	Operation
		Results of the tests
	Check the clutch pedal travel	Continue to Step 2	Pedal travel not correct	Restore the operation of the clutch pedal
2	ENGINE SUPPORT CHECK	All OK	Problems met	Operation
	Check the condition and the centering of the front crossmember and the engine supports and connecting rod	Continue to Step 3	Engine supports fastening faulty	Bed in the fixings: loosen the bolts, centre them in their housings and tighten them to torqueOp. 1008A10
		Continue to Step 3	Faulty link attachment	Bed in the fixings: loosen the bolts, centre them in their housings and tighten them to torque
3	CLUTCH PLATE CHECK	All OK	Problems met	Operation
	Check: that there is no clutch plate wear or 'vitrification' that there is no damage to the pressure plate diaphragm spring	Continue to Step 4	Fault in clutch plate	Replace the clutch plate Op. 1810A20If there is oil, replace the gearbox input oil sealOp. 2110C204
		Continue to Step 4	Faulty clutch pressure plate	Replace clutch pressure plate Op. 1810A20
4	CHECK SPLINED HUB	All OK	Problems met	Operation
	Check the condition of the clutch plate hub, gearbox main shaft and the condition of the assembly	Continue to Step 5	Clutch plate hub faulty	Replace the clutch plate Op. 1810A20
		Continue to Step 5	Gearbox main shaft faulty	Replace the gearbox main shaft Op. 2110B20
5	FLYWHEEL CHECK	All OK	Problems met	Operation
	Check the condition of the flywheel (in particular, the state of the surface, making sure that there is no overheating, uneven wear, incisions or material removed), operation of the flexible couplings	Continue to Step 6	Flywheel damaged	Replace the flywheel Op. 1024B22
6	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

‹ Prev Clutch slipping Next › Clutch pedal hardening

Parts & tools for this job Staging For 2003 Lancia Ypsilon

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