Repair Manual

MANUAL GEARBOX
21
21 - 8
DIAGNOSTICS
E. UNUSUAL NOISES DURING DRIVING
Stop the vehicle.
Bring the gear shifting handle to
dead point.
Let the engine running.
The noise stops.
Check the state of
clutch stroke.
Check transmission
state.
Check the clutch
control system.
Replace defective parts.
Check the level of the
gearbox oil.
Fill to proper level if
needed.
Repair the
transmission.
The noise stops.
Check the wear of
wheels bearings.
Declutching, press the
clutch pedal to end of
stroke.
STOP
The noise stops.
Replace the
wheels bearings.
Dismount the gearbox and
set it in working state.
Search for noise source at
the engine assembly level.
YES
YES
YES
NO
NO
NO
GOOD
GOOD
GOOD
BAD
BAD
BAD
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