22 · Diagnostics

RUMOROSITA (battito) sospensioni POSTERIORI

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Noisy / vibrations › RUMOROSITA (battito) sospensioni POSTERIORI

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Fault diagnosisRUMOROSITA (battito) sospensioni POSTERIORI

RUMOROSITA (battito) sospensioni POSTERIORI

Whilst driving, especially on unmade roads, there is knocking coming from the rear suspension.

This fault diagnosis can only be carried out after the See table S15 RUMOROSITA in condizioni di marcia.

Carry out the latter first.

If the problem is only on one side, carry out the checks and any necessary operations on the appropriate side only

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Having carried out the road test during the See table S15 RUMOROSITA in condizioni di marcia, a creaking/clicking noise is heard coming from the front. Continue depending on the circumstances in which the noise occurs	End of diagnosis	The noise disappears when the handbrake is operated	Eliminate the clearance for the handbrake lever and/or actual handbrake
		End of diagnosis	The noise also appears in other conditions	Continue to Step 1
1	CHECK FOR OIL LEAKS	All OK	Problems met	Operation
	Raise the vehicle on a two collumn lift and check that there are no oil leaks from the shock absorber stem. Slight dampness of the stem is considered normal because there is evaporation that takes place during the operation of the shock absorber. If there is a consistent oil leak at the shock absorber stem, make sure that it is not coming from other parts of the vehicle that are lubricated	Continue to Step 2	Leaks from other parts that are lubricated	Search for the cause of the leak by following the appropriate diagnostic procedure
		Continue to Step 2	Leaks from other parts that are lubricated	Replace the shock absorber Op. 4420A30
2	HANDBRAKE CHECK	All OK	Problems met	Operation
	Position the vehicle on a two column lift and raise it. Check that the handbrake cable outer casing or cables do not come into contact with the fuel tank, heat shields or bodywork during oscillation	Continue to Step 3	Interference between the cable or outer casing and other elements	Cover the cable outer casing with foam rubber tape in the interference area or lubricate the cable
3	INTERFERENCE CHECK	All OK	Problems met	Operation
	Check that there are no signs of interference between the suspension elements or between the latter and the bodyshell. In particular, check that there are no signs of wear at the suspension springs and that they do not suffer from abrasions	Continue to Step 4	Interference due to incorrect fitting	Eliminate the interference and restore the correct fastening. If this is not possible, replace the defective components
		Continue to Step 4	Interference due to incorrect fitting	Replace the spring Op. 4420A48taking care to fit it correctly
4	TIGHTENING TORQUE CHECK	All OK	Problems met	Operation
	Locate the area that is the possible source of the noise: top or bottom. Starting from the area where the knocking was located, check the tightening torques See Test 4420B Verifiche corretti serraggi sospensioni posteriori Of the bolts fixing the: Shock absorber Axle	Continue to Step 5	Tightenings not to torque	Restore the correct tightening
5	Continue as instructed by the tester	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	The knocking is caused by another system (e.g. the fuel float in the tank). Carry out the appropriate checks for identifying the causes of the noise

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Parts & tools for this job For 2001 Fiat Stilo

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