| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Steer
to the right or the left and check whether the noise increases.Steer on full lock and then release the steering wheel: check
whether the intensity of the noise increases or decreases with the
steering angle | Continue to Step 1 | The noise only increases
when steering to the right or the left | See table S40 |
| The noise stops along a straight line | See table S45 |
| The noise increases greatly with the steering angle | Check the constant velocity joints:Continue
to Step 2 |
| The noise remains constant as the steering angle increases | Check the differential:Continue to Step 1 |
| 1 | DIFFERENTIAL CHECK | All OK | Problems met | Operation |
|---|
| Check
the differential and, in particular, the bearings ( Op. 2110D20 ) | Continue to Step 3 | Bearings damaged | Replace the bearings |
| Gears worn or damaged | Overhaul or replace the differential housing |
| 2 | CONSTANT VELOCITY JOINTS CHECK | All OK | Problems met | Operation |
|---|
| Check
the transmission constant velocity joints | Continue to Step 3 | Joint damaged | Replace the joint concerned
(see Assembly 2710A) (wheel side) |
| 3 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |