22 · Diagnostics

Noise'' gearbox / in a specific gear

Fault diagnosisNoise'' gearbox / in a specific gear

NOISE'' GEARBOX / IN A SPECIFIC GEAR

Whilst driving, there is a cyclical or whistling noise in a specific gear. This noise decreases or disappears on changing gear

1	SPEED GEARS CHECK	All OK	Problems met	Operation
		Results of the tests
1.9 JTD 16V 3.2 V6	Overhaul the gearbox Op. Op. 2110B26 MANUAL GEARBOX (SIX SPEED) WITH DIFFERENTIAL - DISMANTLE AND REBUILD WASH AND CHECK PARTS - REPLACE SYNCHRONIZERS AND INTERNAL PARTS IF NECESSARY . In particular, check the teeth of the gear concerned: they should not be worn or show signs of seizing	Continue to Step 2	Gears worn or damaged	Replace the gears involved
2.0 JTS	Overhaul the gearbox Op. Op. 2110B20 MANUAL GEARBOX (5 SPEED) WITH DIFFERENTIAL - DISMANTLE AND REBUILD - WASH AND CHECK PARTS - REPLACE SYNCHRONISERS AND INTERNAL CONTROLS IF NECESSARY . In particular, check the teeth of the gear concerned: they should not be worn or show signs of seizing	Continue to Step 2	Gears worn or damaged	Replace the gears involved
2	SPEED SLEEVES AND SELECTOR FORKS CHECK	All OK	Problems met	Operation
	Check the selector forks and the sleeves for the speed concerned: they should not be worn or damaged	Continue to Step 3	Sleeves or selector forks worn	Replace the components involved
3	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

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