125000682 - S11 ENGINE''BUZZING
There is a constant, loud noise coming from the area of the engine, which is only heard within a certain engine speed range.| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the condition and seal of the air intake circuit | Continue to Step 1 | Circuit component damaged | Replace the component | |
| 1 | ENGINE SUPPORTS CONDITION CHECK | All OK | Problems met | Operation |
Check the correct fixing and condition of:
| Continue to Step 2 | Engine supports fixing not correct | Restore the correct fixing | |
| Gearbox side engine support defective | Replace the gearbox side engine support Op. Op. 1008A42 GEAR BOX LEFT RIGID MOUNT - R R | |||
| Timing side engine support defective | Replace the timing side engine support Op. Op. 1008A46 CAM SHAFT LEFT RIGID MOUNT - R R | |||
| Rear engine support defective | Replace the rear engine support Op. Op. 1008A44 REAR RIGID MOUNT - R R | |||
| Front support flexible mounting faulty | Replace the front support flexible mounting Op. Op. 1008B10 POWER UNIT FRONT MOUNT (TIMING SIDE) FLEXIBLE BLOCK - REPLACE | |||
| Rear support flexible mounting faulty | Replace the rear support flexible mounting Op. Op. 1008B20 POWER UNIT INTERMEDIATE MOUNT FLEXIBLE BLOCK - REPLACE | |||
| Gearbox side support flexible mounting faulty | Replace gearbox side support flexible mounting Op. Op. 1008B30 GEARBOX SIDE MOUNT FLEXIBLE BLOCK - REPLACE | |||
| Reaction rod fixing not correct | Restore the correct fixing | |||
| 2 | ENGINE EXHAUST SUPPORTS CHECK | All OK | Problems met | Operation |
| Check that the exhaust pipe mountings are fixed correctly | Continue to Step 3 | Mountings loose | Secure the mountings | |
| Mounting damaged | Replace the mounting | |||
| 3 | ENGINE EXHAUST CHECK | All OK | Problems met | Operation |
| 1.9 JTD 16V | Check the engine exhaust system and, in particular:
| Continue to Step 4 | Pipe damaged | Replace the pipe Op. 1076B12 |
| Intermediate silencer damaged | Replace the intermediate silencer Op. Op. 1076B26 INTERMEDIATE EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| Rear silencer damaged | Replace the rear silencer Op. Op. 1076B22 REAR EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| 2.0 JTS | Check the engine exhaust system and, in particular:
| Continue to Step 4 | Pipe damaged | Replace the pipe Op. 1076B12 |
| Front silencer damaged | Replace the front silencer Op. Op. 1076B30 FRONT EXHAUST SILENCER - R + R | |||
| Intermediate silencer damaged | Replace the intermediate silencer Op. Op. 1076B26 INTERMEDIATE EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| Rear silencer damaged | Replace the rear silencer Op. Op. 1076B22 REAR EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| Front gasket worn or damaged | Replace the front gasket Op. Op. 1076B34 FRONT CATALYTIC CONVERTER ATTACHMENT SEAL - REPLACE | |||
| 3.2 V6 | Check the engine exhaust system and, in particular:
| Continue to Step 4 | Pipe damaged | Replace the pipe Op. 1076B12 |
| Intermediate silencer damaged | Replace the intermediate silencer Op. Op. 1076B26 INTERMEDIATE EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| Rear silencer damaged | Replace the rear silencer Op. Op. 1076B22 REAR EXHAUST SILENCER - R+R EMISSION CONTROL VERSIONS | |||
| Front gasket worn or damaged | Replace the front gasket Op. Op. 1076B34 FRONT CATALYTIC CONVERTER ATTACHMENT SEAL - REPLACE | |||
| 4 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | . | ||