22 · Diagnostics

Vehicle drift

Make: Fiat
Model: Doblò Factory Service Manual
Year: 2000–2010
Section: STEERING – vehicle behaviour › Vehicle drift

‹ Prev Handbrake not efficient Next › Drift whilst braking

Fault diagnosisVehicle drift

VEHICLE DRIFT

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Verify: condition of the tyres front wheel geometry	Continue to Step 1	Abnormal front tyre wear	Replace the tyres Op. 4450B21and carry out balancing
			Abnormal rear tyre wear	Replace the tyres Op. 4450B21
			Geometry not correct	Restore the correct geometry Op. 4450A10
			Wheels braked: front hub bearing fault	Replace the components involved Op. 4450C32
			Wheels braked: front hub fault	Replace the components involved Op. 4450C10
			Wheels braked: front caliper fault	Replace the components involved Op. 3310A30
			Wheels braked: rear bearing or hub fault	Replace the components involved Op. 4450D10
1	CHECK ON DRIFT	All OK	Problems met	Operation
	Test the vehicle on a straight line, on a good road surface and with no wind and check that there is no drift		The car drifts	Swap over the front wheels Continue to Step 2
2	CHECK ON DRIFT	All OK	Problems met	Operation
	Test the vehicle on a straight line, on a good road surface and with no wind and check that there is no drift		The drift has changed direction	Replace the tyres Op. 4450B21 Continue to Step 3
			The car continues to drift in the same direction	Swap over the front/rear wheels on the same side Continue to Step 3
3	CHECK WHEEL GEOMETRY	All OK	Problems met	Operation
	Check the front and rear wheel geometry	Continue to Step 4	Geometry irregular	Restore the correct geometry Op. 4450A10
			Wheels braked: front hub bearing fault	Replace the components involved Op. 4450C32
			Wheels braked: front hub fault	Replace the components involved Op. 4450C10
			wheels braked: rear bearing or hub fault	Replace the components involved Op. 4450D10
4	CHECK ON STEERING WHEEL LOAD	All OK	Problems met	Operation
	Check that during steering, there are no changes in load on the still steering wheel with wheels both on the ground and raised	Continue to Step 5	A change in load on the steering wheel is observed	Rotate the steering column by 90° around its axis and re-align the steering wheel spokes Op. 4410A14
5	CHECK ON DRIFT	All OK	Problems met	Operation
	Test the vehicle on a straight line, on a good road surface and with no wind and check that there is no drift	Continue to Step 6	The vehicle still drifts	Replace the differential unit Op. 2110D10
6	CHECK ON STEERING WHEEL RETURN	All OK	Problems met	Operation
	Test the vehicle on a straight line, on a good road surface and with no wind and check that there is no drift when the steering wheel returns after a steering action	Continue to Step 7	The vehicle drifts on return of the steering wheel: different caster on right and left	Restore the correct caster Op. 4450A10
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 Handbrake not efficient Next › Drift whilst braking

Parts & tools for this job For 2000 Fiat Doblò

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.