23 · Diagnostics

Gear engagement or release difficult

Make: Alfa Romeo
Model: 159 Factory Service Manual
Year: 2005–2011
Section: Gear shift › Gear engagement or release difficult

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Fault diagnosisGear engagement or release difficult

GEAR ENGAGEMENT OR RELEASE DIFFICULT

It is sometimes difficult to engage the gears; there is also a (grating) noise coming from the area of the gearbox

0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the clutch is correctly released: with the engine running press the clutch pedal and engage a gear	Move on to Step 1	The gearbox always grates with any of the gears: the clutch does not disengage	Proceed as instructed in the See table E001 CLUTCH NOT RELEASING CORRECTLY
1	GEAR SELECTION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the gear selector ball springs (see Overhauling gearboxes, Assembly 2110B ) Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS	Move on to Step 2	Springs or balls damaged	Replace the affected parts.
2	SYNCHRONIZER RING CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Overhaul the gearbox (see Overhauling Gearboxes, Assembly 2110B ) Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS Check the synchronizer rings in particular: there should be no wear on the inner surfaces.	Move on to Step 3	Seals worn	Replace the synchronizers.
3	GEAR CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Overhaul the gearbox (see Overhauling Gearboxes, Assembly 2110B ) Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS Check the gear front teeth in particular: they should not show signs of notches or excessive wear	Move on to Step 4	Gears worn	Replace the gears involved.
4	CHECK ON HUBS AND SLIDING SLEEVES	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Overhaul the gearbox (see Overhauling Gearboxes, Assembly 2110B ) Op. 2110B MANUAL GEARBOX WITH DIFFERENTIAL GEARS AND SYNCHRONISERS Check the hubs and the sliding sleeves in particular: - They should not show signs of notches, wear or excessive clearance; - They should slide freely	End of diagnosis	Sleeves or hubs worn	Replace the sleeves or hubs involved.

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Parts & tools for this job Staging For 2005 Alfa Romeo 159

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