16 · Diagnostics

E03 Clutch slipping

Make: Alfa Romeo
Model: 156 Factory Service Manual
Year: 1997–2002
Section: Clutch › E03 Clutch slipping

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Fault diagnosisE03 Clutch slipping

E03 Clutch slipping

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

Step	Test procedure	Result	Action
0	PRELIMINARY CHECKS Preliminarily check the engine idle speed	OK	Move onto step 1
0		Engine idle irregular	Move onto step (see D10)
1	CLUTCH PEDAL CHECK Check the clutch pedal travel	OK	Move onto step 2
1	CLUTCH PEDAL CHECK Check the clutch pedal travel	Pedal travel not correct	Restore the operation of the clutch pedal Op. 3330B26 End of diagnosis
2	ENGINE SUPPORT CHECK Check the condition and the centering of the front crossmember and the engine supports and reaction rod	OK	Move onto step 3
		Engine supports faulty	Bed in the fixings: loosen the bolts, centre them in their housings and tighten them to the recommended torque (see Assembly 1008A) End of diagnosis
		Reaction rod faulty	Bed in the fixings: loosen the bolts, centre them in their housings and tighten them to the recommended torque (see Assembly 1008C) End of diagnosis
		Engine support crossmember faulty	Bed in the fixings: loosen the bolts, centre them in their housings and tighten them to torque Op. 4410D13 End of diagnosis
3	CLUTCH PLATE CHECK Check: clutch disc wear or "vitrification" that there is no damage to the pressure plate diaphragm spring that there is no damage to the flexible coupling springs	OK	Move onto step 4
		Clutch plate or pressure plate faulty	Replace the clutch plate Op. 1810A20 End of diagnosis
		Presence of oil or grease	Also replace the gearbox input oil seal Op. 2110C22 End of diagnosis
3	CLUTCH PLATE CHECK Check: clutch disc wear or "vitrification" that there is no damaged to the flywheel flexible coupling springs	OK	Move onto step 4
		Clutch plate or pressure plate faulty	Replace the clutch plate Op. 1810A20 End of diagnosis
		Presence of oil or grease	Also replace the gearbox input oil seal Op. 2110C22 End of diagnosis
		Flywheel damaged	Replace the flywheel Op. 1024B22 End of diagnosis
4	CHECK SPLINED HUB Check for excess grease on the clutch plate hub bushes and the gearbox main shaft	OK	Move onto step 5
		Gearbox main shaft hub faulty	Replace the gearbox main shaft (see OVERHAULING GEARBOXES Assembly 2110B) End of diagnosis
		Clutch plate hub bushes faulty	Restore the correct lubrication for the bushes If necessary, replace the clutch plate Op. 1810A20 End of diagnosis
5	FLYWHEEL CHECK Check the condition of the flywheel (in particular, the condition of the surface and that there are no signs of overheating, irregular wear, incisions or the removal of material)	OK	Move onto step 6
5		Flywheel damaged	Replace the flywheel Op. 1024B22 End of diagnosis
6	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
6		Fault persists	Incorrect selection of diagnostic procedure

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Parts & tools for this job For 1997 Alfa Romeo 156

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