23 · Diagnostics

Excessive rolling/pitching - at rear

Make: Fiat
Model: Panda Factory Service Manual
Year: 2003–2012
Section: Steering – vehicle behaviour › Excessive rolling/pitching - at rear

Fault diagnosisExcessive rolling/pitching - at rear

EXCESSIVE ROLLING/PITCHING - AT REAR

The customer complains of an excessive rolling and/or pitching sensation of the vehicle, especially at the back.

1	ROAD TEST TO EVALUATE THE ROLLING/PITCHING	All OK	Problems encountered	Operation
	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	Subjective judgement compared with the reference vehicle 6 Subjective judgement compared with the reference vehicle 5.5 Subjective judgement compared with the reference vehicle 3-4	Acceptable behaviour of the vehicle Move on to Step 2 Move on to Step 4
2	END OF TRAVEL BUFFER CHECK	All OK	Problems encountered	Operation
	Check that the end of travel buffer for the rear spring is not faulty carrying out the See Test 4420AA REAR SUSPENSION SPRING STOP PAD CHECK	Move on to Step 3	End of travel buffer deteriorated	Replace the end of travel buffer
3	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 wheel arch by the centre of the wheel), which should be carried out on both sides of the vehicle.	Move on to Step 4	Sudden return without damping	Replace the shock absorber that is not working properly Op. 4420A12 REAR SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMENTLING/REBUILDING OF ASSEMBLY AT BENCH R R
4	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

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