169000279 - S19 FORECARRIAGE TRANSVERSE VIBRATIONS

Whilst driving, especially on unmade roads, there are transverse vibrations at the front section. This diagnosis can only be made after    See table S15 RUMOROSITA'' IN CONDIZIONI DI MARCIACarry out the latter first.
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Having carried out the road test, during the    See table S15 RUMOROSITA' IN CONDIZIONI DI MARCIAtransverse vibrations are felt from the front end.Continue depending on the circumstances in which the vibration occursEnd of diagnosis

  • The vibration is noticeable during take off
  • The vibration is accompanied by noise which increases with speed
  • The vibration is accompanied by noise over unmade roads

  • Move on to Step 4
  • Move on to Step 2
  • Move on to Step 1
1WHEEL SIDE CONSTANT VELOCITY JOINT CHECKAll OKProblems encounteredOperation
Raise the vehicle on a two column lift and check:

  • That the driveshaft-wheel side joint matching is correct
  • That the seal is present
Move on to Step 2

  • Incorrect matching
  • Sealing ring missing

  • Replace the constant velocity joint and the driveshaft Op. 2710A10 DRIVE SHAFT WITH JOINTS (ONE), L/H OR R/H - R + R
  • Replace the constant velocity joint and the driveshaft Op. 2710A10 DRIVE SHAFT WITH JOINTS (ONE), L/H OR R/H - R + R
2WHEEL SIDE JOINT CLEARANCE CHECKAll OKProblems encounteredOperation
Check that the clearance for the wheel side constant velocity joint is not too greatMove on to Step 3Excessive clearanceReplace the constant velocity joint and grease correctly Op. 2710A20 WHEEL END CONSTANT VELOCITY JOINT (ONE), L/H OR R/H - R + R WITH DRIVE SHAFT REMOVED - INCLUDES BOOT REPLACEMENT
4WHEEL SIDE JOINT TIGHTENING CHECKAll OKProblems encounteredOperation
Remove the wheel    Op. 4450B02 LEFT FRONT WHEEL R RCheck that the constant velocity joint fastening nut is tightened and that the staking is in place.Move on to Step 5Nut looseningReplace the nut, restore the torque tightening and stake
5CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsThe fault is due to another system (engine, clutch, gearbox, differential, suspension).Search for the cause in one of these systems, following the appropriate diagnostic procedures