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Fiat Grande Punto Factory Service Manual (2005-2012)22 · Fault diagnosis

22 · Diagnostics

Excessive rolling/pitching - at front

Make: Fiat
Model: Grande Punto Factory Service Manual
Year: 2005–2012
Section: Steering – vehicle behaviour › Excessive rolling/pitching - at front

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Fault diagnosisExcessive rolling/pitching - at front

EXCESSIVE ROLLING/PITCHING - AT FRONT

1	ROAD TEST TO EVALUATE THE ROLLING - PITCHING	All OK	Problems encountered	Operation
		Results of the tests
	Carry out a road test to evalute the folling/pitching of the vehicle See Test 44B ROAD TEST FOR ROLLING/PITCHING EVALUATION	End of diagnosis	1. Subjective judgement compared with the reference vehicle 6 2. Subjective judgement compared with the reference vehicle 5.5 3. Subjective judgement compared with the reference vehicle 3-4	1. Acceptable behaviour of the vehicle 2. Move on to Step 2 3. Move on to Step 4
2	END OF TRAVEL BUFFER CHECK	All OK	Problems encountered	Operation
	Raise the vehicle on a two column lift and raising the dust cover on the lower side of the support spring check that the end of travel buffer does not show signs of deterioration.	Move on to Step 3	End of travel buffer deteriorated	Replace the end of travel buffer Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R
3	TRACK CONTROL ARM BUSH CHECK	All OK	Problems encountered	Operation
	Check the condition of the track control arm front and rear bushes. The guard under the engine must be removed in order to do this Op. 7055B54 UNDER ENGINE PROTECTION/GUARD - R.R.	Move on to Step 4	1. Track control arm front bush deteriorated 2. Track control arm rear bush deteriorated	1. Replace the lower track control arm Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY 2. Replace the lower track control arm Op. 4410B40 LOWER TRACK CONTROL ARM (WITH BALLJOINT) FOR LEFT OR RIGHT FRONT SUSPENSION (ONE) - R+R - CHECK WHEEL GEOMETRY SEPARATELY
4	SHOCK ABSORBER EFFICIENCY CHECK	All OK	Problems encountered	Operation
	Check the efficiency of the shock absorbers by carrying out manual compression manoeuvres (resting on the bonnet by the centre of the wheel), which should be carried out on both sides of the vehicle	Move on to Step 5	Sudden return without damping	Replace the shock absorber that is not working properly Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R
5	VEHICLE GEOMETRY CHECK	All OK	Problems encountered	Operation
	After replacing the shock absorbers, check the geometry	End of diagnosis	Geometry values do not conform	Restore the geometry to the correct values Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY

‹ Prev Poor driving comfort - at rear Next › Excessive rolling/pitching - at rear

Parts & tools for this job For 2005 Fiat Grande Punto

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