22 · Diagnostics

Clutch pedal hardening

Make: Fiat
Model: Doblò Factory Service Manual
Year: 2000–2010
Section: Clutch › Clutch pedal hardening

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Fault diagnosisClutch pedal hardening

CLUTCH PEDAL HARDENING

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Press the clutch pedal and check whether there is excessive resistance Since the symptom is 'subjective', make sure that there really is hardening compared with the previous condition which was considered 'normal', or compared with similar cars	Continue to Step 1
1	CLUTCH PEDAL POSITION CHECK	All OK	Problems met	Operation
	Visually check the alignment of the clutch pedal in relation to the brake pedal	Continue to Step 2	Alignment not correct	Adjust the clutch cable linkage Op. 1820A14
2	CHECK CLUTCH LEVER TRAVEL	All OK	Problems met	Operation
	Check, inside the engine compartment, that when the clutch pedal is pressed, the clutch control lever on the gearbox performs the correct travel	Continue to Step 5	Incomplete clutch lever travel on gearbox	Continue to Step 3
3	CLUTCH PEDAL CHECK	All OK	Problems met	Operation
	After disconnecting the clutch pedal from the transmission (see Assembly 1820), check that it travels freely without tight spots or stiffness	Continue to Step 4	Play or stiffness of clutch pedal	Replace the pedal Op. 3330B26
4	MECHANICAL CONTROL CHECK	All OK	Problems met	Operation
	With the linkage disconnected from the clutch pedal, check that there is no hardening or sticking and that the cable is free and intact by sliding the cable	Continue to Step 5	Linkage damaged	Replace the linkage Op. 1820A20
5	CHECK ON PRESSURE PLATE AND BEARING (WITH GEARBOX REMOVED)	All OK	Problems met	Operation
	After removing the gearbox, check that the lever is not stiff (because of dirt or insufficient lubrication) and that the clutch release bearing runs freely in its seating and shows no signs of damage	Continue to Step 5	The presence of dirt or wear caused by insufficient lubrication does not allow the clutch release bearing to slide correctly	Replace faulty or damaged components Op. 1820A24
6	CHECK ON CLUTCH ASSEMBLY	All OK	Problems met	Operation
	Visual check on the condition of the clutch assembly, which should not show breaks (pressure plate) and/or obvious damage (disc). Measurements using the gauge as per manual Op. 1820A20	Continue to Step 7	Obvious damage of clutch disc and/or breakage of pressure plate	Replace the assembly Op. 1820A20
7	CHECK ON CLUTCH SPLINED HUB	All OK	Problems met	Operation
	Check, in order: That there is no excess grease on the clutch plate hub bushes and the gearbox main shaft Condition of hub and main shaft	Continue to Step 8	Main shaft damage, hub worn, excessive grease on bushes	Replace the hub and/or main shaft Op. 1810A20or OVERHAULING GEARBOXES Assembly 2110B
8	FLYWHEEL CONDITION CHECK	All OK	Problems met	Operation
	Check the condition of the flywheel. In particular, check: Condition of surface; Wear; Chips; Signs of overheating	Continue to Step 9	Flywheel damaged	Replace the flywheel Op. 1024B22
9	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Press the clutch pedal and check whether there is excessive resistance Since the symptom is 'subjective', make sure that there really is hardening compared with the previous condition which was considered 'normal', or compared with similar cars	Continue to Step 1
1	CHECK CLUTCH LEVER TRAVEL	All OK	Problems met	Operation
	Check, inside the engine compartment, that when the clutch pedal is pressed, the clutch control lever on the gearbox performs the correct travel	Continue to Step 3	Incomplete clutch lever travel on gearbox	Continue to Step 2
2	CLUTCH PEDAL CHECK	All OK	Problems met	Operation
	After disconnecting the clutch pedal from the transmission Op. 1820B20, check that it travels freely without tight spots or stiffness	Continue to Step 3	Play or stiffness of clutch pedal	Replace the pedal Op. 3330B26
3	CHECK ON PRESSURE PLATE AND BEARING (WITH GEARBOX REMOVED)	All OK	Problems met	Operation
	After removing the gearbox, check that the lever is not stiff (because of dirt or insufficient lubrication) and that the clutch release bearing runs freely in its seating and shows no signs of damage	Continue to Step 4	The presence of dirt or wear caused by insufficient lubrication does not allow the clutch release bearing to slide correctly	Replace faulty or damaged components
4	CHECK ON CLUTCH ASSEMBLY	All OK	Problems met	Operation
	Visual check on the condition of the clutch assembly, which should not show breaks (pressure plate) and/or obvious damage (disc). Measurements using the gauge as per manual	Continue to Step 5	Obvious damage of clutch disc and/or breakage of pressure plate	Replace the assembly Op. 1810A24
5	CHECK ON CLUTCH SPLINED HUB	All OK	Problems met	Operation
	Check, in order: that there is no excess grease on the clutch plate hub bushes and the gearbox main shaft; that the hub and main shaft are undamaged	Continue to Step 6	Main shaft damage, hub worn, excessive grease on bushes	Replace the hub and/or main shaft
6	FLYWHEEL CONDITION CHECK	All OK	Problems met	Operation
	Check the condition of the flywheel. In particular, check: condition of surface wear chips signs of overheating	Continue to Step 7	Flywheel damaged	Replace the flywheel Op. 1024B10
7	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

‹ Prev Clutch vibrating or jerking Next › Poor braking action

Parts & tools for this job Staging For 2000 Fiat Doblò

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